diff --git a/lib/radio/cordic/sim/Makefile.cordic_top b/lib/radio/cordic/sim/Makefile.cordic_top
index 328c4f6..7aa8bac 100644
--- a/lib/radio/cordic/sim/Makefile.cordic_top
+++ b/lib/radio/cordic/sim/Makefile.cordic_top
@@ -25,8 +25,8 @@ SRCS += ../src/tb_cordic_top.vhd
 # Compile
 TARGET := cordic_top
 ENTITY := tb_cordic_top
-WITH_GHW := y
-RUN_TIME := 500us
+WITH_VCD := y
+RUN_TIME := 300us
 
 GHDL_OPTS := -P$(LIB_PATH)/fixed/ieee_proposed/build/fixed_pkg/ieee_proposed