diff --git a/Rakefile b/Rakefile
index 3198ea2..acd4ae6 100644
--- a/Rakefile
+++ b/Rakefile
@@ -47,5 +47,5 @@ task :yui3 do
 end
 
 task :clean do
-  `for file in \`cat .gitignore\`; do rm -rf $file; done`
+  git clean -fdx
 end