diff --git a/test/presenters/document_collection_presenter_test.rb b/test/presenters/document_collection_presenter_test.rb
index 7251ef175..d166b929f 100644
--- a/test/presenters/document_collection_presenter_test.rb
+++ b/test/presenters/document_collection_presenter_test.rb
@@ -128,7 +128,7 @@ class PresentedDocumentCollection < TestCase
 
         public_updated_at = grouped[0][:metadata][:public_updated_at]
 
-        assert_equal nil, public_updated_at
+        assert_nil nil, public_updated_at
       end
     end
   end