diff --git a/docs/template/index-tree.vue.vm b/docs/template/index-tree.vue.vm
index e4d28f4a..b187996c 100644
--- a/docs/template/index-tree.vue.vm
+++ b/docs/template/index-tree.vue.vm
@@ -47,6 +47,9 @@ const {
     params: {}
   },
   idField: '#foreach($column in $columns)#if($column.isPk == '1')$column.javaField#end#end',
+#if(${treeParentCode} && ${treeParentCode} != 'parentId')
+  parentIdField: '${treeParentCode}',
+#end
   columns: () => [
     {
       type: 'selection',