diff --git a/codespell_lib/tests/test_basic.py b/codespell_lib/tests/test_basic.py
index 72b14f8c3a7..27ee3d7d461 100644
--- a/codespell_lib/tests/test_basic.py
+++ b/codespell_lib/tests/test_basic.py
@@ -238,7 +238,7 @@ def test_interactivity(
     try:
         assert cs.main(fname) == 0, "empty file"
         fname.write_text("abandonned\n")
-        with mock.patch.object(sys, 'argv', ("-i", "-1", fname)):
+        with mock.patch.object(sys, "argv", ("-i", "-1", fname)):
             with pytest.raises(SystemExit) as e:
                 cs.main("-i", "-1", fname)
             assert e.type == SystemExit