diff --git a/aiohttp/web_protocol.py b/aiohttp/web_protocol.py
index 122ae33b3c1..aa4ff64dbcd 100644
--- a/aiohttp/web_protocol.py
+++ b/aiohttp/web_protocol.py
@@ -331,8 +331,6 @@ def connection_lost(self, exc: Optional[BaseException]) -> None:
                 exc = ConnectionResetError("Connection lost")
             self._current_request._cancel(exc)
 
-        if self._task_handler is not None:
-            self._task_handler.cancel()
         if self._waiter is not None:
             self._waiter.cancel()