diff --git a/builtins/2.7/__builtin__.pyi b/builtins/2.7/__builtin__.pyi
index caf3e1991..3f889be7e 100644
--- a/builtins/2.7/__builtin__.pyi
+++ b/builtins/2.7/__builtin__.pyi
@@ -29,6 +29,7 @@ class object:
 
     def __init__(self) -> None: ...
     def __new__(cls) -> Any: ...
+    def __setattr__(self, name: str, value: Any) -> None: ...
     def __eq__(self, o: object) -> bool: ...
     def __ne__(self, o: object) -> bool: ...
     def __str__(self) -> str: ...