diff --git a/railties/lib/rails/generators/rails/plugin/templates/test/test_helper.rb b/railties/lib/rails/generators/rails/plugin/templates/test/test_helper.rb
index c6e2247e16d0305b407121d1f4c3f86b517b78fb..28cdfecf81a88d24c6c2a4fe6ae1787fa84e81ab 100644
--- a/railties/lib/rails/generators/rails/plugin/templates/test/test_helper.rb
+++ b/railties/lib/rails/generators/rails/plugin/templates/test/test_helper.rb
@@ -13,6 +13,6 @@
 Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }
 
 # Load fixtures from the engine
-if ActiveSupport::TestCase.method_defined?(:fixture_path=)
+if ActiveSupport::TestCase.respond_to?(:fixture_path=)
   ActiveSupport::TestCase.fixture_path = File.expand_path("../fixtures", __FILE__)
 end