diff --git a/openfpga/src/annotation/device_rr_gsb.cpp b/openfpga/src/annotation/device_rr_gsb.cpp
index fdf7b9a74..d2eb8da29 100644
--- a/openfpga/src/annotation/device_rr_gsb.cpp
+++ b/openfpga/src/annotation/device_rr_gsb.cpp
@@ -175,9 +175,9 @@ void DeviceRRGSB::reserve(const vtr::Point<size_t>& coordinate) {
 void DeviceRRGSB::reserve_unique_modules() {
   /* As rr_gsb_ has been built, it has valid size. Will reserve space for unique
    * blocks according to rr_gsb_'s size*/
-  sb_unique_module_id_.resize(rr_gsb_.x());
-  cbx_unique_module_id_.resize(rr_gsb_.x());
-  cby_unique_module_id_.resize(rr_gsb_.x());
+  sb_unique_module_id_.resize(rr_gsb_.size());
+  cbx_unique_module_id_.resize(rr_gsb_.size());
+  cby_unique_module_id_.resize(rr_gsb_.size());
 
   for (std::size_t i = 0; i < rr_gsb_.size(); ++i) {
     sb_unique_module_id_[i].resize(rr_gsb_[i].size());
diff --git a/openfpga/src/annotation/device_rr_gsb.h b/openfpga/src/annotation/device_rr_gsb.h
index ff3a604b1..03c99e6af 100644
--- a/openfpga/src/annotation/device_rr_gsb.h
+++ b/openfpga/src/annotation/device_rr_gsb.h
@@ -76,9 +76,7 @@ class DeviceRRGSB {
   void reserve(
     const vtr::Point<size_t>& coordinate); /* Pre-allocate the rr_switch_block
                                               array that the device requires */
-  void reserve_unique_modules(
-    const vtr::Point<size_t>&
-      coordinate); /* Pre-allocate the rr_sb_unique_module_id matrix that the
+  void reserve_unique_modules(); /* Pre-allocate the rr_sb_unique_module_id matrix that the
                       device requires */
   void resize_upon_need(
     const vtr::Point<size_t>&
diff --git a/openfpga/src/annotation/read_xml_unique_blocks.cpp b/openfpga/src/annotation/read_xml_unique_blocks.cpp
index 88a30280c..8abcaf3cd 100644
--- a/openfpga/src/annotation/read_xml_unique_blocks.cpp
+++ b/openfpga/src/annotation/read_xml_unique_blocks.cpp
@@ -118,7 +118,7 @@ int read_xml_unique_blocks(DeviceRRGSB& device_rr_gsb, const char* file_name,
     /* clear unique modules & reserve memory to relavant vectors */
     device_rr_gsb.clear_unique_modules();
     // vtr::Point<size_t> grid_coord(rr_gsb_.size());
-    device_rr_gsb.reserve_unique_modules(grid_coord);
+    device_rr_gsb.reserve_unique_modules();
 
     /* load unique blocks xml file and set up device_rr_gdb */
     for (pugi::xml_node xml_block_info : xml_root.children()) {
diff --git a/openfpga/src/annotation/write_xml_unique_blocks.cpp b/openfpga/src/annotation/write_xml_unique_blocks.cpp
index c664d6760..65c69e355 100644
--- a/openfpga/src/annotation/write_xml_unique_blocks.cpp
+++ b/openfpga/src/annotation/write_xml_unique_blocks.cpp
@@ -123,7 +123,7 @@ void report_unique_module_status_write(const DeviceRRGSB& device_rr_gsb,
 int write_xml_unique_blocks(const DeviceRRGSB& device_rr_gsb, const char* fname,
                             bool verbose_output) {
   vtr::ScopedStartFinishTimer timer("Write unique blocks...");
-  if (device_rr_gsb.get_is_dirty_flag() == false) {
+  if (device_rr_gsb.is_compressed() == false) {
     VTR_LOG_ERROR("unique_blocks are empty!");
     return CMD_EXEC_FATAL_ERROR;
   }