diff --git a/Rakefile b/Rakefile
index 8d2996c5..79807a44 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,10 +1,13 @@
 require "bundler/gem_tasks"
+require "rake/clean"
 require "rake/testtask"
 require_relative "lib/standard/rake"
 
+CLOBBER.include "*.gem"
+
+task default: [:test, "standard:fix"]
+
 Rake::TestTask.new(:test) do |t|
   t.warning = false
   t.test_files = FileList["test/**/*_test.rb"]
 end
-
-task default: [:test, "standard:fix"]