diff --git a/libs/libpcf/src/io/read_csv_io_pin_table.h b/libs/libpcf/src/io/read_csv_io_pin_table.h
index 50f5e3d2a..e1b121bff 100644
--- a/libs/libpcf/src/io/read_csv_io_pin_table.h
+++ b/libs/libpcf/src/io/read_csv_io_pin_table.h
@@ -20,7 +20,10 @@ enum class e_pin_table_direction_convention {
   QUICKLOGIC,
   NUM_TYPES
 };
-constexpr std::array<const char*, static_cast<size_t>(e_pin_table_direction_convention::NUM_TYPES)> PIN_TABLE_DIRECTION_CONVENTION_STRING = {{"explicit", "quicklogic"}}; //String versions of side orientations
+const std::map<e_pin_table_direction_convention, const char*> PIN_TABLE_DIRECTION_CONVENTION_STRING = {
+  {e_pin_table_direction_convention::EXPLICIT, "explicit"},
+  {e_pin_table_direction_convention::QUICKLOGIC, "quicklogic"}
+}; //String versions of side orientations
 
 IoPinTable read_csv_io_pin_table(const char* fname, const e_pin_table_direction_convention& pin_dir_convention);
 
diff --git a/libs/libpcf/test/test_pcf2place.cpp b/libs/libpcf/test/test_pcf2place.cpp
index b70e5339b..38e1c18c4 100644
--- a/libs/libpcf/test/test_pcf2place.cpp
+++ b/libs/libpcf/test/test_pcf2place.cpp
@@ -42,8 +42,8 @@ int main(int argc, const char** argv) {
     openfpga::read_xml_io_location_map(argv[3]);
   VTR_LOG("Read the I/O location map from an XML file: %s.\n", argv[3]);
 
-  openfpga::IoPinTable io_pin_table = openfpga::read_csv_io_pin_table(argv[4]);
-  VTR_LOG("Read the I/O pin table from a csv file: %s.\n", argv[4], openfpga::e_pin_table_direction_convention::QUICKLOGIC);
+  openfpga::IoPinTable io_pin_table = openfpga::read_csv_io_pin_table(argv[4], openfpga::e_pin_table_direction_convention::QUICKLOGIC);
+  VTR_LOG("Read the I/O pin table from a csv file: %s.\n", argv[4]);
 
   /* Convert */
   openfpga::IoNetPlace io_net_place;
diff --git a/openfpga/src/base/openfpga_pcf2place.cpp b/openfpga/src/base/openfpga_pcf2place.cpp
index bcb069b8b..215d54b3b 100644
--- a/openfpga/src/base/openfpga_pcf2place.cpp
+++ b/openfpga/src/base/openfpga_pcf2place.cpp
@@ -49,13 +49,13 @@ int pcf2place_wrapper(const OpenfpgaContext& openfpga_context,
   e_pin_table_direction_convention pin_table_dir_convention = e_pin_table_direction_convention::EXPLICIT;
   if (cmd_context.option_enable(cmd, opt_pin_table_dir_convention)) {
     std::string pin_table_dir_convention_str = cmd_context.option_value(cmd, opt_pin_table_dir_convention);
-    if (pin_table_dir_convention_str == std::string(PIN_TABLE_DIRECTION_CONVENTION_STRING[e_pin_table_direction_convention::EXPLICIT])) {
+    if (pin_table_dir_convention_str == std::string(PIN_TABLE_DIRECTION_CONVENTION_STRING.at(e_pin_table_direction_convention::EXPLICIT))) {
       pin_table_dir_convention = e_pin_table_direction_convention::EXPLICIT;
-    } else if (pin_table_dir_convention_str == std::string(PIN_TABLE_DIRECTION_CONVENTION_STRING[e_pin_table_direction_convention::QUICKLOGIC])) {
+    } else if (pin_table_dir_convention_str == std::string(PIN_TABLE_DIRECTION_CONVENTION_STRING.at(e_pin_table_direction_convention::QUICKLOGIC))) {
       pin_table_dir_convention = e_pin_table_direction_convention::QUICKLOGIC;
     } else {
       VTR_LOG_ERROR("Invalid pin naming convention ('%s') to identify port direction for pin table! Expect ['%s'|'%s'].\n",
-              pin_table_dir_convention_str.c_str(), PIN_TABLE_DIRECTION_CONVENTION_STRING[e_pin_table_direction_convention::EXPLICIT], PIN_TABLE_DIRECTION_CONVENTION_STRING[e_pin_table_direction_convention::QUICKLOGIC]);
+              pin_table_dir_convention_str.c_str(), PIN_TABLE_DIRECTION_CONVENTION_STRING.at(e_pin_table_direction_convention::EXPLICIT), PIN_TABLE_DIRECTION_CONVENTION_STRING.at(e_pin_table_direction_convention::QUICKLOGIC));
     }
   }