diff --git a/src/components/TreeSelect/__stories__/TreeSelectDocs.md b/src/components/TreeSelect/__stories__/TreeSelectDocs.md
index 8382e130f4..1977b6d86e 100644
--- a/src/components/TreeSelect/__stories__/TreeSelectDocs.md
+++ b/src/components/TreeSelect/__stories__/TreeSelectDocs.md
@@ -38,7 +38,7 @@ interface Entity {
   title: string;
 }
 
-const items: ListItemType<>[] = [
+const items: ListItemType<Entity>[] = [
   {title: 'one', id: '1'},
   {title: 'two', id: '2'},
   {title: 'free', id: '3'},