diff --git a/stdlib/2and3/pkgutil.pyi b/stdlib/2and3/pkgutil.pyi
index d7767eb45..42619dbed 100644
--- a/stdlib/2and3/pkgutil.pyi
+++ b/stdlib/2and3/pkgutil.pyi
@@ -24,7 +24,7 @@ def find_loader(fullname: str) -> Loader: ...
 def get_importer(path_item: str) -> Any: ...  # TODO precise type
 def get_loader(module_or_name: str) -> Loader: ...
 def iter_importers(fullname: str = ...) -> Generator[Any, None, None]: ...  # TODO precise type
-def iter_modules(path: Optional[str] = ...,
+def iter_modules(path: Optional[List[str]] = ...,
                  prefix: str = ...) -> _YMFNI: ...  # TODO precise type
 def walk_packages(path: Optional[str] = ..., prefix: str = ...,
                   onerror: Optional[Callable[[str], None]] = ...) -> _YMFNI: ...