diff --git a/stdlib/3.4/asyncio/futures.pyi b/stdlib/3.4/asyncio/futures.pyi
index 00086f45a..28dbefb0d 100644
--- a/stdlib/3.4/asyncio/futures.pyi
+++ b/stdlib/3.4/asyncio/futures.pyi
@@ -11,6 +11,7 @@ from concurrent.futures import (
 __all__: List[str]
 
 _T = TypeVar('_T')
+_S = TypeVar('_S', bound=Future)
 
 class InvalidStateError(Error): ...
 
@@ -40,8 +41,8 @@ class Future(Iterable[_T], Awaitable[_T], Generic[_T]):
     def done(self) -> bool: ...
     def result(self) -> _T: ...
     def exception(self) -> BaseException: ...
-    def add_done_callback(self, fn: Callable[[Future[_T]], Any]) -> None: ...
-    def remove_done_callback(self, fn: Callable[[Future[_T]], Any]) -> int: ...
+    def add_done_callback(self: _S, fn: Callable[[_S], Any]) -> None: ...
+    def remove_done_callback(self: _S, fn: Callable[[_S], Any]) -> int: ...
     def set_result(self, result: _T) -> None: ...
     def set_exception(self, exception: Union[type, BaseException]) -> None: ...
     def _copy_state(self, other: Any) -> None: ...