diff --git a/projects/mips_sys/ise101/mips_sys/Makefile b/projects/mips_sys/ise101/mips_sys/Makefile
index c8c3864..5820076 100644
--- a/projects/mips_sys/ise101/mips_sys/Makefile
+++ b/projects/mips_sys/ise101/mips_sys/Makefile
@@ -30,8 +30,8 @@ $(PRJ).ncd: $(PRJ)_map.ncd
 	par -w -intstyle xflow -ol high -xe n -t 1 $(PRJ)_map.ncd $(PRJ).ncd $(PRJ).pcf
 
 # Bitgen
-$(PRJ).bit: par $(PRJ).ut
-	bitgen -intstyle xflow -f $(PRJ).ut
+$(PRJ).bit: $(PRJ).ncd $(PRJ).ut
+	bitgen -intstyle xflow -f $(PRJ).ut $(PRJ).ncd
 
 $(DIRS):
 	mkdir -p $(DIRS)