diff --git a/activerecord/test/cases/helper.rb b/activerecord/test/cases/helper.rb
index 0530ba9bd9..f30d58546e 100644
--- a/activerecord/test/cases/helper.rb
+++ b/activerecord/test/cases/helper.rb
@@ -1,4 +1,5 @@
 $:.unshift(File.dirname(__FILE__) + '/../../lib')
+$:.unshift(File.dirname(__FILE__) + '/../../../activesupport/lib')
 
 require 'config'
 require 'test/unit'