diff --git a/stdlib/3/builtins.pyi b/stdlib/3/builtins.pyi
index a8650269f..ecd664602 100644
--- a/stdlib/3/builtins.pyi
+++ b/stdlib/3/builtins.pyi
@@ -582,6 +582,7 @@ class slice:
     def indices(self, len: int) -> Tuple[int, int, int]: ...
 
 class tuple(Sequence[_T_co], Generic[_T_co]):
+    def __new__(cls: Type[_T], iterable: Iterable[_T_co] = ...) -> _T: ...
     def __init__(self, iterable: Iterable[_T_co] = ...) -> None: ...
     def __len__(self) -> int: ...
     def __contains__(self, x: object) -> bool: ...