diff --git a/stdlib/2and3/distutils/core.pyi b/stdlib/2and3/distutils/core.pyi
index 9d41daf5f..125b79992 100644
--- a/stdlib/2and3/distutils/core.pyi
+++ b/stdlib/2and3/distutils/core.pyi
@@ -27,7 +27,7 @@ def setup(name: str = ...,
           license: str = ...,
           keywords: Union[List[str], str] = ...,
           platforms: Union[List[str], str] = ...,
-          cmdclass: Mapping[str, Command] = ...,
+          cmdclass: Mapping[str, Type[Command]] = ...,
           data_files: List[Tuple[str, List[str]]] = ...,
           package_dir: Mapping[str, str] = ...,
           obsoletes: List[str] = ...,