diff --git a/pandas/tests/indexes/test_old_base.py b/pandas/tests/indexes/test_old_base.py
index e4fae1119e121..528ef2e19aaec 100644
--- a/pandas/tests/indexes/test_old_base.py
+++ b/pandas/tests/indexes/test_old_base.py
@@ -417,7 +417,10 @@ def test_insert_base(self, index):
         # test 0th element
         assert index[0:4].equals(result.insert(0, index[0]))
 
-    @pytest.mark.skipif(using_pyarrow_string_dtype(), reason="completely different behavior, tested elsewher")
+    @pytest.mark.skipif(
+        using_pyarrow_string_dtype(),
+        reason="completely different behavior, tested elsewher",
+    )
     def test_insert_out_of_bounds(self, index):
         # TypeError/IndexError matches what np.insert raises in these cases