diff --git a/third_party/2and3/mypy_extensions.pyi b/third_party/2and3/mypy_extensions.pyi
index 48bdac21fedd..2d9d81d37714 100644
--- a/third_party/2and3/mypy_extensions.pyi
+++ b/third_party/2and3/mypy_extensions.pyi
@@ -2,7 +2,6 @@ from typing import Dict, Type, TypeVar, Union
 
 _T = TypeVar('_T')
 
-
 def TypedDict(typename: str, fields: Dict[str, Type[_T]]) -> Type[dict]: ...
 
 # Return type that indicates a function does not return.