diff --git a/test/stdlib/did_you_mean/DidYouMean_test.rb b/test/stdlib/did_you_mean/DidYouMean_test.rb
index a727b75102..3fa7d52f4c 100644
--- a/test/stdlib/did_you_mean/DidYouMean_test.rb
+++ b/test/stdlib/did_you_mean/DidYouMean_test.rb
@@ -1,4 +1,5 @@
 require_relative "../test_helper"
+require "did_you_mean"
 
 class DidYouMean::CorrectableTest < Test::Unit::TestCase
   include TestHelper