diff --git a/src/components/Tree/src/types/tree.ts b/src/components/Tree/src/types/tree.ts
index 785b7f2f2f2..ff7cf043537 100644
--- a/src/components/Tree/src/types/tree.ts
+++ b/src/components/Tree/src/types/tree.ts
@@ -91,7 +91,6 @@ export const treeProps = buildProps({
 
   expandedKeys: {
     type: Array as PropType<KeyType[]>,
-    default: () => [],
   },
 
   selectedKeys: {