diff --git a/Formula/mruby.rb b/Formula/mruby.rb
index c233585b4d..746639e9bd 100644
--- a/Formula/mruby.rb
+++ b/Formula/mruby.rb
@@ -1,5 +1,3 @@
-require "formula"
-
 class Mruby < Formula
   desc "Lightweight implementation of the Ruby language"
   homepage "http://www.mruby.org"