diff --git a/lib/radio/cordic/sim/Makefile.cordic_top b/lib/radio/cordic/sim/Makefile.cordic_top
index a43d063..09828ab 100644
--- a/lib/radio/cordic/sim/Makefile.cordic_top
+++ b/lib/radio/cordic/sim/Makefile.cordic_top
@@ -28,6 +28,7 @@ ENTITY := tb_cordic_top
 WITH_GHW := y
 RUN_TIME := 2000us
 
+#GHDL_OPTS := -P$(LIB_PATH)/fixed/ieee_proposed/build/fixed_pkg/ieee_proposed
 GHDL_OPTS := -P../../../../Common/sim/ieee_proposed/modelsim/build/ghdl/ieee_proposed
 
 include ../../../../Common/make/ghdl.mk