diff --git a/Makefile b/Makefile
index 204d7b5..304e7bb 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@
 v = bzsilicon_$(shell jq -r .version info.json)
 
 copy:
+	rm -rf ../$(v)
 	mkdir -p ../$(v)
 	cp -rf * ../$(v)
 	rm -f ../$(v).zip