diff --git a/Rakefile b/Rakefile
index aa6e7af..11db99f 100644
--- a/Rakefile
+++ b/Rakefile
@@ -2,6 +2,8 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
 
+CLEAN.include "temp"
+
 Rake::TestTask.new(:test) do |t|
   t.libs << "test"
   t.libs << "lib"