diff --git a/test/test_helper.rb b/test/test_helper.rb
index e3a92c7..eede0d0 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,3 +1,5 @@
+require 'test/unit'
+
 require 'rubygems'
 require 'active_support'
 require 'active_support/test_case'