diff --git a/docs/source/manual/openfpga_shell/openfpga_commands/fpga_bitstream_commands.rst b/docs/source/manual/openfpga_shell/openfpga_commands/fpga_bitstream_commands.rst
index bf66e4b09..d764ced67 100644
--- a/docs/source/manual/openfpga_shell/openfpga_commands/fpga_bitstream_commands.rst
+++ b/docs/source/manual/openfpga_shell/openfpga_commands/fpga_bitstream_commands.rst
@@ -41,6 +41,10 @@ build_architecture_bitstream
   .. option:: --write_file <string>
 
     Output the fabric-independent bitstream to an XML file. See details at :ref:`file_formats_architecture_bitstream`.
+
+  .. option:: --no_time_stamp
+
+    Do not print time stamp in bitstream files
   
   .. option:: --verbose
 
@@ -81,6 +85,10 @@ write_fabric_bitstream
 
     Keep don't care bits (``x``) in the outputted bitstream file. This is only applicable to plain text file format. If not enabled, the don't care bits are converted to either logic ``0`` or ``1``.
 
+  .. option:: --no_time_stamp
+
+    Do not print time stamp in bitstream files
+
   .. option:: --verbose
 
     Show verbose log
@@ -95,6 +103,10 @@ write_io_mapping
     Specify the file name where the I/O mapping will be outputted to.
     See file formats in :ref:`file_format_io_mapping_file`.
 
+  .. option:: --no_time_stamp
+
+    Do not print time stamp in bitstream files
+
   .. option:: --verbose
 
     Show verbose log
@@ -113,6 +125,10 @@ report_bitstream_distribution
 
     Specify the maximum depth of the block which should appear in the block
 
+  .. option:: --no_time_stamp
+
+    Do not print time stamp in bitstream files
+
   .. option:: --verbose
 
     Show verbose log
diff --git a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
index 1667b3e86..4446d1aac 100644
--- a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
+++ b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
@@ -27,16 +27,20 @@ namespace openfpga {
  * This function write header information for an XML file of bitstream distribution
  *******************************************************************/
 static 
-void report_architecture_bitstream_distribution_xml_file_head(std::fstream& fp) {
+void report_architecture_bitstream_distribution_xml_file_head(std::fstream& fp,
+                                                              const bool& include_time_stamp) {
   valid_file_stream(fp);
  
-  auto end = std::chrono::system_clock::now(); 
-  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
-
   fp << "<!-- " << std::endl;
   fp << "\t- Report Architecture Bitstream Distribution" << std::endl;
   fp << "\t- Version: " << openfpga::VERSION << std::endl;
-  fp << "\t- Date: " << std::ctime(&end_time) ;
+
+  if (include_time_stamp) {
+    auto end = std::chrono::system_clock::now(); 
+    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+    fp << "\t- Date: " << std::ctime(&end_time) ;
+  }
+
   fp << "--> " << std::endl;
   fp << std::endl;
 }
@@ -88,6 +92,7 @@ void rec_report_block_bitstream_distribution_to_xml_file(std::fstream& fp,
  *******************************************************************/
 int report_architecture_bitstream_distribution(const BitstreamManager& bitstream_manager,
                                                const std::string& fname,
+                                               const bool& include_time_stamp,
                                                const size_t& max_hierarchy_level) {
   /* Ensure that we have a valid file name */
   if (true == fname.empty()) {
@@ -105,7 +110,7 @@ int report_architecture_bitstream_distribution(const BitstreamManager& bitstream
   check_file_stream(fname.c_str(), fp);
 
   /* Put down a brief introduction */
-  report_architecture_bitstream_distribution_xml_file_head(fp);
+  report_architecture_bitstream_distribution_xml_file_head(fp, include_time_stamp);
 
   /* Find the top block, which has not parents */
   std::vector<ConfigBlockId> top_block = find_bitstream_manager_top_blocks(bitstream_manager);
diff --git a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
index 322a65901..4b684d3b8 100644
--- a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
+++ b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
@@ -16,6 +16,7 @@ namespace openfpga {
 
 int report_architecture_bitstream_distribution(const BitstreamManager& bitstream_manager,
                                                const std::string& fname,
+                                               const bool& include_time_stamp,
                                                const size_t& max_hierarchy_level = 1);
 
 } /* end namespace openfpga */
diff --git a/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.cpp b/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.cpp
index 17e94cd15..0c6c5fe49 100644
--- a/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.cpp
+++ b/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.cpp
@@ -27,17 +27,21 @@ namespace openfpga {
  * This function write header information to a bitstream file
  *******************************************************************/
 static 
-void write_bitstream_xml_file_head(std::fstream& fp) {
+void write_bitstream_xml_file_head(std::fstream& fp,
+                                   const bool& include_time_stamp) {
   valid_file_stream(fp);
  
-  auto end = std::chrono::system_clock::now(); 
-  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
-
   fp << "<!--" << std::endl;
   fp << "\t- Architecture independent bitstream" << std::endl;
   fp << "\t- Author: Xifan TANG" << std::endl;
   fp << "\t- Organization: University of Utah" << std::endl;
-  fp << "\t- Date: " << std::ctime(&end_time) ;
+
+  if (include_time_stamp) {
+    auto end = std::chrono::system_clock::now(); 
+    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+    fp << "\t- Date: " << std::ctime(&end_time) ;
+  }
+
   fp << "-->" << std::endl;
   fp << std::endl;
 }
@@ -172,7 +176,8 @@ void rec_write_block_bitstream_to_xml_file(std::fstream& fp,
  * 3. TODO: support FASM format 
  *******************************************************************/
 void write_xml_architecture_bitstream(const BitstreamManager& bitstream_manager,
-                                      const std::string& fname) {
+                                      const std::string& fname,
+                                      const bool& include_time_stamp) {
   /* Ensure that we have a valid file name */
   if (true == fname.empty()) {
     VTR_LOG_ERROR("Received empty file name to output bitstream!\n\tPlease specify a valid file name.\n");
@@ -188,7 +193,7 @@ void write_xml_architecture_bitstream(const BitstreamManager& bitstream_manager,
   check_file_stream(fname.c_str(), fp);
 
   /* Put down a brief introduction */
-  write_bitstream_xml_file_head(fp);
+  write_bitstream_xml_file_head(fp, include_time_stamp);
 
   /* Find the top block, which has not parents */
   std::vector<ConfigBlockId> top_block = find_bitstream_manager_top_blocks(bitstream_manager);
diff --git a/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.h b/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.h
index 5d30b8d6d..9a93280b4 100644
--- a/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.h
+++ b/libopenfpga/libfpgabitstream/src/write_xml_arch_bitstream.h
@@ -15,7 +15,8 @@
 namespace openfpga {
 
 void write_xml_architecture_bitstream(const BitstreamManager& bitstream_manager,
-                                      const std::string& fname);
+                                      const std::string& fname,
+                                      const bool& include_time_stamp);
 
 } /* end namespace openfpga */
 
diff --git a/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp b/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
index d71b077c4..ed88406c5 100644
--- a/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
+++ b/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
@@ -14,7 +14,7 @@
 
 int main(int argc, const char** argv) {
   /* Ensure we have only one or two or 3 argument */
-  VTR_ASSERT((2 == argc) || (3 == argc) || (4 == argc));
+  VTR_ASSERT((2 == argc) || (3 == argc) || (4 == argc) || (5 == argc));
 
   /* Parse the bitstream from an XML file */
   openfpga::BitstreamManager test_bitstream = openfpga::read_xml_architecture_bitstream(argv[1]);
@@ -25,16 +25,22 @@ int main(int argc, const char** argv) {
    * This is optional only used when there is a second argument
    */
   if (3 <= argc) { 
-    openfpga::write_xml_architecture_bitstream(test_bitstream, argv[2]);
-    VTR_LOG("Echo the bitstream to an XML file: %s.\n",
+    openfpga::write_xml_architecture_bitstream(test_bitstream, argv[2], true);
+    VTR_LOG("Echo the bitstream (with time stamp) to an XML file: %s.\n",
+            argv[2]);
+    openfpga::write_xml_architecture_bitstream(test_bitstream, argv[2], false);
+    VTR_LOG("Echo the bitstream (w/o time stamp) to an XML file: %s.\n",
             argv[2]);
   }
   /* Output the bitstream distribution to an XML file
    * This is optional only used when there is a third argument
    */
   if (4 <= argc) { 
-    openfpga::report_architecture_bitstream_distribution(test_bitstream, argv[3]);
-    VTR_LOG("Echo the bitstream distribution to an XML file: %s.\n",
+    openfpga::report_architecture_bitstream_distribution(test_bitstream, argv[3], true);
+    VTR_LOG("Echo the bitstream distribution (with time stamp) to an XML file: %s.\n",
+            argv[3]);
+    openfpga::report_architecture_bitstream_distribution(test_bitstream, argv[3], false);
+    VTR_LOG("Echo the bitstream distribution (w/o time stamp) to an XML file: %s.\n",
             argv[3]);
   }
 
diff --git a/openfpga/src/base/openfpga_bitstream.cpp b/openfpga/src/base/openfpga_bitstream.cpp
index 9dff1c7a8..43d9801b3 100644
--- a/openfpga/src/base/openfpga_bitstream.cpp
+++ b/openfpga/src/base/openfpga_bitstream.cpp
@@ -40,6 +40,7 @@ int fpga_bitstream(OpenfpgaContext& openfpga_ctx,
                    const Command& cmd, const CommandContext& cmd_context) {
 
   CommandOptionId opt_verbose = cmd.option("verbose");
+  CommandOptionId opt_no_time_stamp = cmd.option("no_time_stamp");
   CommandOptionId opt_write_file = cmd.option("write_file");
   CommandOptionId opt_read_file = cmd.option("read_file");
 
@@ -58,7 +59,8 @@ int fpga_bitstream(OpenfpgaContext& openfpga_ctx,
     create_directory(src_dir_path);
 
     write_xml_architecture_bitstream(openfpga_ctx.bitstream_manager(),
-                                     cmd_context.option_value(cmd, opt_write_file));
+                                     cmd_context.option_value(cmd, opt_write_file),
+                                     !cmd_context.option_enable(cmd, opt_no_time_stamp));
   }
 
   /* TODO: should identify the error code from internal function execution */
@@ -95,6 +97,7 @@ int write_fabric_bitstream(const OpenfpgaContext& openfpga_ctx,
   CommandOptionId opt_file_format = cmd.option("format");
   CommandOptionId opt_fast_config = cmd.option("fast_configuration");
   CommandOptionId opt_keep_dont_care_bits = cmd.option("keep_dont_care_bits");
+  CommandOptionId opt_no_time_stamp = cmd.option("no_time_stamp");
 
   /* Write fabric bitstream if required */
   int status = CMD_EXEC_SUCCESS;
@@ -117,6 +120,7 @@ int write_fabric_bitstream(const OpenfpgaContext& openfpga_ctx,
                                                 openfpga_ctx.fabric_bitstream(),
                                                 openfpga_ctx.arch().config_protocol,
                                                 cmd_context.option_value(cmd, opt_file),
+                                                !cmd_context.option_enable(cmd, opt_no_time_stamp),
                                                 cmd_context.option_enable(cmd, opt_verbose));
   } else {
     /* By default, output in plain text format */
@@ -128,6 +132,7 @@ int write_fabric_bitstream(const OpenfpgaContext& openfpga_ctx,
                                                  cmd_context.option_value(cmd, opt_file),
                                                  cmd_context.option_enable(cmd, opt_fast_config),
                                                  cmd_context.option_enable(cmd, opt_keep_dont_care_bits),
+                                                 !cmd_context.option_enable(cmd, opt_no_time_stamp),
                                                  cmd_context.option_enable(cmd, opt_verbose));
   }
   
@@ -141,6 +146,7 @@ int write_io_mapping(const OpenfpgaContext& openfpga_ctx,
                      const Command& cmd, const CommandContext& cmd_context) {
 
   CommandOptionId opt_verbose = cmd.option("verbose");
+  CommandOptionId opt_no_time_stamp = cmd.option("no_time_stamp");
   CommandOptionId opt_file = cmd.option("file");
 
   /* Write fabric bitstream if required */
@@ -175,6 +181,7 @@ int write_io_mapping(const OpenfpgaContext& openfpga_ctx,
 
   status = write_io_mapping_to_xml_file(io_map,
                                         cmd_context.option_value(cmd, opt_file),
+                                        !cmd_context.option_enable(cmd, opt_no_time_stamp),
                                         cmd_context.option_enable(cmd, opt_verbose));
   
   return status;
@@ -187,6 +194,7 @@ int report_bitstream_distribution(const OpenfpgaContext& openfpga_ctx,
                                   const Command& cmd, const CommandContext& cmd_context) {
 
   CommandOptionId opt_file = cmd.option("file");
+  CommandOptionId opt_no_time_stamp = cmd.option("no_time_stamp");
 
   int status = CMD_EXEC_SUCCESS;
   
@@ -212,6 +220,7 @@ int report_bitstream_distribution(const OpenfpgaContext& openfpga_ctx,
 
   status = report_architecture_bitstream_distribution(openfpga_ctx.bitstream_manager(),
                                                       cmd_context.option_value(cmd, opt_file),
+                                                      !cmd_context.option_enable(cmd, opt_no_time_stamp),
                                                       depth);
   
   return status;
diff --git a/openfpga/src/base/openfpga_bitstream_command.cpp b/openfpga/src/base/openfpga_bitstream_command.cpp
index fcf431890..4f633b5b4 100644
--- a/openfpga/src/base/openfpga_bitstream_command.cpp
+++ b/openfpga/src/base/openfpga_bitstream_command.cpp
@@ -57,6 +57,8 @@ ShellCommandId add_openfpga_build_arch_bitstream_command(openfpga::Shell<Openfpg
   CommandOptionId opt_read_file = shell_cmd.add_option("read_file", false, "file path to read the bitstream database");
   shell_cmd.set_option_require_value(opt_read_file, openfpga::OPT_STRING);
 
+  /* Add an option '--no_time_stamp' */
+  shell_cmd.add_option("no_time_stamp", false, "Do not print time stamp in output files");
 
   /* Add an option '--verbose' */
   shell_cmd.add_option("verbose", false, "Enable verbose output");
@@ -92,6 +94,9 @@ ShellCommandId add_openfpga_report_bitstream_distribution_command(openfpga::Shel
   CommandOptionId opt_depth = shell_cmd.add_option("depth", false, "Specify the max. depth of blocks which will appear in report");
   shell_cmd.set_option_require_value(opt_depth, openfpga::OPT_STRING);
 
+  /* Add an option '--no_time_stamp' */
+  shell_cmd.add_option("no_time_stamp", false, "Do not print time stamp in output files");
+
   /* Add an option '--verbose' */
   shell_cmd.add_option("verbose", false, "Enable verbose output");
   
@@ -157,6 +162,9 @@ ShellCommandId add_openfpga_write_fabric_bitstream_command(openfpga::Shell<Openf
   /* Add an option '--keep_dont_care_bit' */
   shell_cmd.add_option("keep_dont_care_bits", false, "Keep don't care bits in bitstream file; If not enabled, don't care bits are converted to logic '0' or '1'");
 
+  /* Add an option '--no_time_stamp' */
+  shell_cmd.add_option("no_time_stamp", false, "Do not print time stamp in output files");
+
   /* Add an option '--verbose' */
   shell_cmd.add_option("verbose", false, "Enable verbose output");
 
@@ -187,6 +195,9 @@ ShellCommandId add_openfpga_write_io_mapping_command(openfpga::Shell<OpenfpgaCon
   shell_cmd.set_option_short_name(opt_file, "f");
   shell_cmd.set_option_require_value(opt_file, openfpga::OPT_STRING);
 
+  /* Add an option '--no_time_stamp' */
+  shell_cmd.add_option("no_time_stamp", false, "Do not print time stamp in output files");
+
   /* Add an option '--verbose' */
   shell_cmd.add_option("verbose", false, "Enable verbose output");
 
diff --git a/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.cpp b/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.cpp
index 9854398dd..236013878 100644
--- a/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.cpp
+++ b/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.cpp
@@ -30,15 +30,18 @@ namespace openfpga {
  * This function write header information to a bitstream file
  *******************************************************************/
 static 
-void write_fabric_bitstream_text_file_head(std::fstream& fp) {
+void write_fabric_bitstream_text_file_head(std::fstream& fp,
+                                           const bool& include_time_stamp) {
   valid_file_stream(fp);
  
-  auto end = std::chrono::system_clock::now(); 
-  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
-
   fp << "// Fabric bitstream" << std::endl;
   fp << "// Version: " << openfpga::VERSION << std::endl;
-  fp << "// Date: " << std::ctime(&end_time);
+
+  if (include_time_stamp) {
+    auto end = std::chrono::system_clock::now(); 
+    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+    fp << "// Date: " << std::ctime(&end_time);
+  }
 }
 
 /********************************************************************
@@ -370,6 +373,7 @@ int write_fabric_bitstream_to_text_file(const BitstreamManager& bitstream_manage
                                         const std::string& fname,
                                         const bool& fast_configuration,
                                         const bool& keep_dont_care_bits,
+                                        const bool& include_time_stamp,
                                         const bool& verbose) {
   /* Ensure that we have a valid file name */
   if (true == fname.empty()) {
@@ -399,7 +403,7 @@ int write_fabric_bitstream_to_text_file(const BitstreamManager& bitstream_manage
   }
 
   /* Write file head */
-  write_fabric_bitstream_text_file_head(fp);
+  write_fabric_bitstream_text_file_head(fp, include_time_stamp);
 
   /* Output fabric bitstream to the file */
   int status = 0;
diff --git a/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.h b/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.h
index e63cea5c9..78c5b8908 100644
--- a/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.h
+++ b/openfpga/src/fpga_bitstream/write_text_fabric_bitstream.h
@@ -27,6 +27,7 @@ int write_fabric_bitstream_to_text_file(const BitstreamManager& bitstream_manage
                                         const std::string& fname,
                                         const bool& fast_configuration,
                                         const bool& keep_dont_care_bits,
+                                        const bool& include_time_stamp,
                                         const bool& verbose);
 
 } /* end namespace openfpga */
diff --git a/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.cpp b/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.cpp
index 8ea50e015..b22538bd3 100644
--- a/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.cpp
+++ b/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.cpp
@@ -28,17 +28,21 @@ namespace openfpga {
  * This function write header information to a bitstream file
  *******************************************************************/
 static 
-void write_fabric_bitstream_xml_file_head(std::fstream& fp) {
+void write_fabric_bitstream_xml_file_head(std::fstream& fp,
+                                          const bool& include_time_stamp) {
   valid_file_stream(fp);
- 
-  auto end = std::chrono::system_clock::now(); 
-  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
 
   fp << "<!--" << std::endl;
   fp << "\t- Fabric bitstream" << std::endl;
   fp << "\t- Author: Xifan TANG" << std::endl;
   fp << "\t- Organization: University of Utah" << std::endl;
-  fp << "\t- Date: " << std::ctime(&end_time) ;
+
+  auto end = std::chrono::system_clock::now(); 
+  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+  if (include_time_stamp) {
+    fp << "\t- Date: " << std::ctime(&end_time) ;
+  }
+
   fp << "-->" << std::endl;
   fp << std::endl;
 }
@@ -201,6 +205,7 @@ int write_fabric_bitstream_to_xml_file(const BitstreamManager& bitstream_manager
                                        const FabricBitstream& fabric_bitstream,
                                        const ConfigProtocol& config_protocol,
                                        const std::string& fname,
+                                       const bool& include_time_stamp,
                                        const bool& verbose) {
   /* Ensure that we have a valid file name */
   if (true == fname.empty()) {
@@ -217,7 +222,7 @@ int write_fabric_bitstream_to_xml_file(const BitstreamManager& bitstream_manager
   check_file_stream(fname.c_str(), fp);
 
   /* Write XML head */
-  write_fabric_bitstream_xml_file_head(fp);
+  write_fabric_bitstream_xml_file_head(fp, include_time_stamp);
 
   int xml_hierarchy_depth = 0;
   fp << "<fabric_bitstream>\n";
diff --git a/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.h b/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.h
index 73bf57912..26673e0c7 100644
--- a/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.h
+++ b/openfpga/src/fpga_bitstream/write_xml_fabric_bitstream.h
@@ -21,6 +21,7 @@ int write_fabric_bitstream_to_xml_file(const BitstreamManager& bitstream_manager
                                        const FabricBitstream& fabric_bitstream,
                                        const ConfigProtocol& config_protocol,
                                        const std::string& fname,
+                                       const bool& include_time_stamp,
                                        const bool& verbose);
 
 } /* end namespace openfpga */
diff --git a/openfpga/src/fpga_bitstream/write_xml_io_mapping.cpp b/openfpga/src/fpga_bitstream/write_xml_io_mapping.cpp
index 5b3f383b1..9f8ed3fa8 100644
--- a/openfpga/src/fpga_bitstream/write_xml_io_mapping.cpp
+++ b/openfpga/src/fpga_bitstream/write_xml_io_mapping.cpp
@@ -29,16 +29,20 @@ namespace openfpga {
  * This function write header information to an I/O mapping file
  *******************************************************************/
 static 
-void write_io_mapping_xml_file_head(std::fstream& fp) {
+void write_io_mapping_xml_file_head(std::fstream& fp,
+                                    const bool& include_time_stamp) {
   valid_file_stream(fp);
  
-  auto end = std::chrono::system_clock::now(); 
-  std::time_t end_time = std::chrono::system_clock::to_time_t(end);
-
   fp << "<!--" << std::endl;
   fp << "\t- I/O mapping" << std::endl;
   fp << "\t- Version: " << openfpga::VERSION << std::endl;
-  fp << "\t- Date: " << std::ctime(&end_time) ;
+
+  if (include_time_stamp) {
+    auto end = std::chrono::system_clock::now(); 
+    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+    fp << "\t- Date: " << std::ctime(&end_time) ;
+  }
+
   fp << "-->" << std::endl;
   fp << std::endl;
 }
@@ -93,6 +97,7 @@ int write_io_mapping_pair_to_xml_file(std::fstream& fp,
  *******************************************************************/
 int write_io_mapping_to_xml_file(const IoMap& io_map,
                                  const std::string& fname,
+                                 const bool& include_time_stamp,
                                  const bool& verbose) {
   /* Ensure that we have a valid file name */
   if (true == fname.empty()) {
@@ -110,7 +115,7 @@ int write_io_mapping_to_xml_file(const IoMap& io_map,
   check_file_stream(fname.c_str(), fp);
 
   /* Write XML head */
-  write_io_mapping_xml_file_head(fp);
+  write_io_mapping_xml_file_head(fp, include_time_stamp);
 
   int xml_hierarchy_depth = 0;
   fp << "<io_mapping>\n";
diff --git a/openfpga/src/fpga_bitstream/write_xml_io_mapping.h b/openfpga/src/fpga_bitstream/write_xml_io_mapping.h
index 330106141..1a68cb75a 100644
--- a/openfpga/src/fpga_bitstream/write_xml_io_mapping.h
+++ b/openfpga/src/fpga_bitstream/write_xml_io_mapping.h
@@ -18,6 +18,7 @@ namespace openfpga {
 
 int write_io_mapping_to_xml_file(const IoMap& io_map,
                                  const std::string& fname,
+                                 const bool& include_time_stamp,
                                  const bool& verbose);
 
 } /* end namespace openfpga */