diff --git a/stdlib/3/builtins.pyi b/stdlib/3/builtins.pyi
index 43b42bc97..4ac3cff86 100644
--- a/stdlib/3/builtins.pyi
+++ b/stdlib/3/builtins.pyi
@@ -50,6 +50,7 @@ class object:
     def __sizeof__(self) -> int: ...
     def __reduce__(self) -> tuple: ...
     def __reduce_ex__(self, protocol: int) -> tuple: ...
+    def __dir__(self) -> List[str]: ...
 
     if sys.version_info >= (3, 6):
         def __init_subclass__(cls) -> None: ...