diff --git a/tests/mypy_plugins/test_enum_identity_compare.py b/tests/mypy_plugins/test_enum_identity_compare.py
index c3a84f8c6272..f0b04ec50cd1 100644
--- a/tests/mypy_plugins/test_enum_identity_compare.py
+++ b/tests/mypy_plugins/test_enum_identity_compare.py
@@ -416,10 +416,10 @@ def mypy_errors(tmp_path_factory: pytest.TempPathFactory) -> dict[str, list[str]
             for case in (*_PLAIN_ENUM_CASES, *_NO_FLAG_CASES)
         },
         **{case.id: case.values[0] for case in _FRAMEWORK_CASES},
-    }
-    assert len(sources) == len(_PLAIN_ENUM_CASES) + len(_NO_FLAG_CASES) + len(
-        _FRAMEWORK_CASES
-    ), "Duplicate pytest.param id across case tables"
+    }
+    assert len(sources) == len(_PLAIN_ENUM_CASES) + len(_NO_FLAG_CASES) + len(
+        _FRAMEWORK_CASES
+    ), "Duplicate pytest.param id across case tables"
 
     case_id_by_module: dict[str, str] = {}
     paths: list[Path] = []