diff --git a/Makefile b/Makefile
index 0606be8..1e41c8b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 all : zencoding-vim.zip
 
 zencoding-vim.zip :
-	-rm -f zencoding-vim.zip
 	zip -r zencoding-vim.zip autoload plugin
+
+release: zencoding-vim.zip
+	./vimup update-script zencoding.vim