diff --git a/actionpack/test/template/test_case_test.rb b/actionpack/test/template/test_case_test.rb
index a747f46527633..a0c46f8a594f8 100644
--- a/actionpack/test/template/test_case_test.rb
+++ b/actionpack/test/template/test_case_test.rb
@@ -248,7 +248,7 @@ class RenderTemplateTest < ActionView::TestCase
     test "supports specifying locals (failing)" do
       controller.controller_path = "test"
       render(:template => "test/calling_partial_with_layout")
-      assert_raise Test::Unit::AssertionFailedError, /Somebody else.*David/m do
+      assert_raise ActiveSupport::TestCase::Assertion, /Somebody else.*David/m do
         assert_template :partial => "_partial_for_use_in_layout", :locals => { :name => "Somebody Else" }
       end
     end