diff --git a/pandas/io/formats/format.py b/pandas/io/formats/format.py
index 65124f97459cd..29f6e8ab96f71 100644
--- a/pandas/io/formats/format.py
+++ b/pandas/io/formats/format.py
@@ -1546,7 +1546,7 @@ def _format_strings(self) -> list[str]:
 
 
 def format_percentiles(
-    percentiles: (np.ndarray | Sequence[float]),
+    percentiles: np.ndarray | Sequence[float],
 ) -> list[str]:
     """
     Outputs rounded and formatted percentiles.