diff --git a/lib/mutant.rb b/lib/mutant.rb
index 7eaf307c..37ea6398 100644
--- a/lib/mutant.rb
+++ b/lib/mutant.rb
@@ -9,6 +9,7 @@ require 'equalizer'
 require 'ice_nine'
 require 'morpher'
 require 'open3'
+require 'optparse'
 require 'parallel'
 require 'parser'
 require 'parser/current'
diff --git a/lib/mutant/cli.rb b/lib/mutant/cli.rb
index 61012f13..9528e281 100644
--- a/lib/mutant/cli.rb
+++ b/lib/mutant/cli.rb
@@ -1,5 +1,3 @@
-require 'optparse'
-
 module Mutant
 
   # Commandline parser