diff --git a/stdlib/3/types.pyi b/stdlib/3/types.pyi
index b5f67a8ce..ffb1fd6c6 100644
--- a/stdlib/3/types.pyi
+++ b/stdlib/3/types.pyi
@@ -110,6 +110,7 @@ BuiltinMethodType = BuiltinFunctionType
 
 class ModuleType:
     __name__ = ... # type: str
+    __file__ = ...  # type: str
     __doc__ = ... # type: Optional[str]
     if sys.version_info >= (3, 4):
         __loader__ = ... # type: Optional[importlib.abc.Loader]