diff --git a/docs/template/index-tree.vue.vm b/docs/template/index-tree.vue.vm
index 37c39640..cf6ebed6 100644
--- a/docs/template/index-tree.vue.vm
+++ b/docs/template/index-tree.vue.vm
@@ -51,6 +51,11 @@ const {
   parentIdField: '${treeParentCode}',
 #end
   columns: () => [
+    {
+      type: 'selection',
+      align: 'center',
+      width: 48
+    },
 #foreach ($column in $columns)
   #if($column.list)
     {