diff --git a/stdlib/3/multiprocessing/connection.pyi b/stdlib/3/multiprocessing/connection.pyi
index 2bad30958..e12cba6cb 100644
--- a/stdlib/3/multiprocessing/connection.pyi
+++ b/stdlib/3/multiprocessing/connection.pyi
@@ -28,7 +28,7 @@ class Listener:
 class Connection:
     def close(self) -> None: ...
     def fileno(self) -> int: ...
-    def poll(self, timeout: float = ...) -> bool: ...
+    def poll(self, timeout: Optional[float] = ...) -> bool: ...
     def recv(self) -> Any: ...
     def recv_bytes(self, maxlength: Optional[int] = ...) -> bytes: ...
     def recv_bytes_into(self, buf: Any, offset: int = ...) -> int: ...