diff --git a/stdlib/asyncio/protocols.pyi b/stdlib/asyncio/protocols.pyi
index a7eb940b0..da4054177 100644
--- a/stdlib/asyncio/protocols.pyi
+++ b/stdlib/asyncio/protocols.pyi
@@ -18,6 +18,7 @@ if sys.version_info >= (3, 7):
         def buffer_updated(self, nbytes: int) -> None: ...
 
 class DatagramProtocol(BaseProtocol):
+    def connection_made(self, transport: transports.DatagramTransport) -> None: ...  # type: ignore[override]
     def datagram_received(self, data: bytes, addr: Tuple[str, int]) -> None: ...
     def error_received(self, exc: Exception) -> None: ...