diff --git a/docs/examples/tree/filtering.vue b/docs/examples/tree/filtering.vue
index 3a62aeace8..d1d33ad9a5 100644
--- a/docs/examples/tree/filtering.vue
+++ b/docs/examples/tree/filtering.vue
@@ -16,9 +16,7 @@ import { ref, watch } from 'vue'
 import { ElTree } from 'element-plus'
 
 interface Tree {
-  id: number
-  label: string
-  children?: Tree[]
+  [key: string]: any
 }
 
 const filterText = ref('')