diff --git a/ui (gen4)/Makefile b/ui (gen4)/Makefile
index 03bb7d17..361157ab 100755
--- a/ui (gen4)/Makefile	
+++ b/ui (gen4)/Makefile	
@@ -93,7 +93,7 @@ endif
 # NOTE: some of the targets are directories so this will enable GNUMake's
 # 	automatic cleanup to work.
 # 	...not sure if this is the right way to go...
-RM += -f
+RM += -r