diff --git a/retopo_tools/Makefile b/retopo_tools/Makefile
index 6b5bf43..933a414 100644
--- a/retopo_tools/Makefile
+++ b/retopo_tools/Makefile
@@ -1,7 +1,10 @@
 all: retopo_tools_addon.zip
 
 %.zip: *.py
-	zip -r $@ $^
+	mkdir retop_tools
+	cp *.py retop_tools/
+	zip -r $@ retop_tools/
+	rm -rf retop_tools/
 
 .PHONY: clean
 clean: