diff --git a/stdlib/2.7/__builtin__.pyi b/stdlib/2.7/__builtin__.pyi
index d17e12365..3097c92a4 100644
--- a/stdlib/2.7/__builtin__.pyi
+++ b/stdlib/2.7/__builtin__.pyi
@@ -868,6 +868,9 @@ class BytesWarning(Warning): ...
 class ResourceWarning(Warning): ...
 
 def eval(s: str, globals: Dict[str, Any] = ..., locals: Dict[str, Any] = ...) -> Any: ...
+def exec(object: str,
+         globals: Dict[str, Any] = None,
+         locals: Dict[str, Any] = None) -> Any: ...  # TODO code object as source
 
 def cmp(x: Any, y: Any) -> int: ...