diff --git a/third_party/2/enum.pyi b/third_party/2/enum.pyi
index 2bab1a883858..6fb5960e38c8 100644
--- a/third_party/2/enum.pyi
+++ b/third_party/2/enum.pyi
@@ -1,7 +1,7 @@
 from typing import List, Any, TypeVar, Union, Iterable, Iterator, TypeVar, Generic, Type, Sized, Reversible, Container, Mapping
 from abc import ABCMeta
 
-_T = TypeVar('_T', bound=Enum)
+_T = TypeVar('_T')
 _S = TypeVar('_S', bound=Type[Enum])
 
 # Note: EnumMeta actually subclasses type directly, not ABCMeta.