diff --git a/third_party/2and3/google/protobuf/message.pyi b/third_party/2and3/google/protobuf/message.pyi
index 60bcf8a67..62e9a329f 100644
--- a/third_party/2and3/google/protobuf/message.pyi
+++ b/third_party/2and3/google/protobuf/message.pyi
@@ -2,7 +2,7 @@ import sys
 from typing import Any, ByteString, Sequence, Tuple, Type, TypeVar, Union
 
 from .descriptor import Descriptor, FieldDescriptor
-from .internal.extension_dict import _ExtensionDict
+from .internal.extension_dict import _ExtensionDict, _ExtensionFieldDescriptor
 
 class Error(Exception): ...
 class DecodeError(Error): ...
@@ -30,8 +30,8 @@ class Message:
     def SerializeToString(self, deterministic: bool = ...) -> bytes: ...
     def SerializePartialToString(self, deterministic: bool = ...) -> bytes: ...
     def ListFields(self) -> Sequence[Tuple[FieldDescriptor, Any]]: ...
-    def HasExtension(self, extension_handle): ...
-    def ClearExtension(self, extension_handle): ...
+    def HasExtension(self: _M, extension_handle: _ExtensionFieldDescriptor[_M, Any]) -> bool: ...
+    def ClearExtension(self: _M, extension_handle: _ExtensionFieldDescriptor[_M, Any]) -> None: ...
     def ByteSize(self) -> int: ...
     @classmethod
     def FromString(cls: Type[_M], s: _Serialized) -> _M: ...