diff --git a/test/test_helper.rb b/test/test_helper.rb
index ab7084aaa..653a97625 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -19,7 +19,7 @@ ENV["RAILS_ENV"] = "test"
 require File.expand_path(File.dirname(__FILE__) + "/../config/environment")
 require 'test_help'
 require File.expand_path(File.dirname(__FILE__) + '/helper_testcase')
-require Rails.root.join('test', 'mocks', 'open_id_authentication_mock.rb')
+require Rails.root.join('test', 'mocks', 'open_id_authentication_mock.rb').to_s
 
 require File.expand_path(File.dirname(__FILE__) + '/object_daddy_helpers')
 include ObjectDaddyHelpers