diff --git a/Makefile b/Makefile
index 4db5363f0c..64a968d61b 100644
--- a/Makefile
+++ b/Makefile
@@ -70,4 +70,5 @@ clean-dev:
 
 clean-git:
 	rm -r js/
-	git checkout -- js/
+	rm -r css/
+	git checkout -- js/ css/