diff --git a/discord/voice_client.py b/discord/voice_client.py
index 251a1f155e..61bc0ad9d2 100644
--- a/discord/voice_client.py
+++ b/discord/voice_client.py
@@ -647,7 +647,7 @@ def play(
         self,
         source: AudioSource,
         *,
-        after: Callable[[Exception | None], Any] = None,
+        after: Callable[[Exception | None], Any] | None = None,
         wait_finish: bool = False,
     ) -> None | asyncio.Future:
         """Plays an :class:`AudioSource`.