diff --git a/tests/test_filelock.py b/tests/test_filelock.py
index bc53976..3896dc8 100644
--- a/tests/test_filelock.py
+++ b/tests/test_filelock.py
@@ -135,7 +135,7 @@ def test_ro_file(lock_type: type[BaseFileLock], tmp_file_ro: Path) -> None:
 
 @pytest.mark.parametrize("lock_type", [FileLock, SoftFileLock])
 @pytest.mark.parametrize(
-    "expected_error,match,bad_lock_file",
+    ("expected_error", "match", "bad_lock_file"),
     bad_lock_file_errors,
     ids=[e[0].__name__ for e in bad_lock_file_errors],
 )