diff --git a/stdlib/builtins.pyi b/stdlib/builtins.pyi
index ff2312727fae..e4cd9c10f647 100644
--- a/stdlib/builtins.pyi
+++ b/stdlib/builtins.pyi
@@ -156,6 +156,7 @@ class type(object):
     def __subclasscheck__(self, subclass: type) -> bool: ...
     @classmethod
     def __prepare__(metacls, __name: str, __bases: Tuple[type, ...], **kwds: Any) -> Mapping[str, Any]: ...
+    def __or__(self, t: type) -> type: ...
 
 class super(object):
     @overload