diff --git a/tests/test_client_functional.py b/tests/test_client_functional.py
index 89a161aa7bd..1343e655ff3 100644
--- a/tests/test_client_functional.py
+++ b/tests/test_client_functional.py
@@ -2459,7 +2459,7 @@ async def handler_redirect(request):
 
 
 @pytest.mark.parametrize(
-    "invalid_redirect_url, error_message_url, expected_exception_class",
+    ("invalid_redirect_url", "error_message_url", "expected_exception_class"),
     (
         # yarl.URL.__new__ raises ValueError
         ("http://:/", "http://:/", InvalidUrlRedirectClientError),