diff --git a/sqlalchemy-stubs/sql/schema.pyi b/sqlalchemy-stubs/sql/schema.pyi
index 758ab4b..4d24906 100644
--- a/sqlalchemy-stubs/sql/schema.pyi
+++ b/sqlalchemy-stubs/sql/schema.pyi
@@ -304,7 +304,7 @@ class Index(DialectKWArgs, ColumnCollectionMixin, SchemaItem):
     name: str = ...
     unique: bool = ...
     info: Optional[Mapping[str, Any]] = ...
-    def __init__(self, name: str, *expressions: Union[TextClause, ColumnElement[Any], str], unique: bool = ...,
+    def __init__(self, name: Optional[str], *expressions: Union[TextClause, ColumnElement[Any], str], unique: bool = ...,
                  quote: Optional[bool] = ..., info: Optional[Mapping[str, Any]] = ..., **kw: Any) -> None: ...
     @property
     def bind(self) -> Optional[Union[Engine, Connection]]: ...