diff --git a/stdlib/3/multiprocessing/managers.pyi b/stdlib/3/multiprocessing/managers.pyi
index ceabefbd8..7c19b1d20 100644
--- a/stdlib/3/multiprocessing/managers.pyi
+++ b/stdlib/3/multiprocessing/managers.pyi
@@ -37,7 +37,7 @@ class BaseManager(ContextManager[BaseManager]):
     def start(self, initializer: Optional[Callable[..., Any]] = ...,
               initargs: Iterable[Any] = ...) -> None: ...
 
-class SyncManager(BaseManager):
+class SyncManager(BaseManager, ContextManager[SyncManager]):
     def BoundedSemaphore(self, value: Any = ...) -> threading.BoundedSemaphore: ...
     def Condition(self, lock: Any = ...) -> threading.Condition: ...
     def Event(self) -> threading.Event: ...