diff --git a/libraries/base/common/hdllib.cfg b/libraries/base/common/hdllib.cfg
index 85ef4cbf15c81dfa25a8d61bc76e34455ee1b89d..a975551af50ef14a1c13916348fe649efcfdcd63 100644
--- a/libraries/base/common/hdllib.cfg
+++ b/libraries/base/common/hdllib.cfg
@@ -46,7 +46,7 @@ synth_files =
     src/vhdl/common_ddio_out.vhd
     
     src/vhdl/common_wideband_data_scope.vhd
-    #src/vhdl/common_iobuf_in.vhd
+    src/vhdl/common_iobuf_in.vhd
     #$UNB/Firmware/modules/common/src/vhdl/common_iobuf_in_a_stratix4.vhd
     src/vhdl/common_inout.vhd
     src/vhdl/common_fanout.vhd