diff --git a/stdlib/3/typing.pyi b/stdlib/3/typing.pyi
index 7fe15b9ff..330624141 100644
--- a/stdlib/3/typing.pyi
+++ b/stdlib/3/typing.pyi
@@ -680,6 +680,6 @@ if sys.version_info >= (3, 7):
         def __init__(self, arg: str, is_argument: bool = ...) -> None: ...
         def _evaluate(self, globalns: Optional[Dict[str, Any]],
                       localns: Optional[Dict[str, Any]]) -> Optional[Any]: ...
-        def __eq__(self, other: Any) -> Union[bool, NotImplemented]: ...
+        def __eq__(self, other: Any) -> bool: ...
         def __hash__(self) -> int: ...
         def __repr__(self) -> str: ...