diff --git a/tests/core/test_flattening.py b/tests/core/test_flattening.py
index f62afd02d..37e63ff6b 100644
--- a/tests/core/test_flattening.py
+++ b/tests/core/test_flattening.py
@@ -39,7 +39,11 @@
             id="flattened schema not provided",
         ),
         pytest.param(
-            None, None, None, InvalidFlatteningRecordsParameter, id="no schema or max level provided"
+            None,
+            None,
+            None,
+            InvalidFlatteningRecordsParameter,
+            id="no schema or max level provided",
         ),
     ],
 )