diff --git a/builtins/2.7/__builtin__.pyi b/builtins/2.7/__builtin__.pyi
index 692fdcf0a..cbb94f998 100644
--- a/builtins/2.7/__builtin__.pyi
+++ b/builtins/2.7/__builtin__.pyi
@@ -438,7 +438,7 @@ class slice:
     start = 0
     step = 0
     stop = 0
-    def __init__(self, start: int, stop: int, step: int) -> None: ...
+    def __init__(self, start: int, stop: int = 0, step: int = 0) -> None: ...
 
 class tuple(Sequence[_T_co], Generic[_T_co]):
     def __init__(self, iterable: Iterable[_T_co] = ...) -> None: ...