diff --git a/activesupport/test/core_ext/object/to_query_test.rb b/activesupport/test/core_ext/object/to_query_test.rb
index 8d1a8c628c..92f996f9a4 100644
--- a/activesupport/test/core_ext/object/to_query_test.rb
+++ b/activesupport/test/core_ext/object/to_query_test.rb
@@ -47,7 +47,7 @@ class ToQueryTest < ActiveSupport::TestCase
   end
 
   private
-    def assert_query_equal(expected, actual, message = nil)
+    def assert_query_equal(expected, actual)
       assert_equal expected.split('&'), actual.to_query.split('&')
     end
 end