diff --git a/ui/lib/js/utils.js b/ui/lib/js/utils.js
index 800cb061..dde5ccdf 100644
--- a/ui/lib/js/utils.js
+++ b/ui/lib/js/utils.js
@@ -54,6 +54,12 @@ const $arr2tree = (list, config = {}) => {
       itemMap[pid].children.push(treeItem)
     } else result.push(treeItem)
   }
+  const removeNullChildren = node => {
+    if (node[children] && node[children].length > 0) {
+      node[children].map(c => removeNullChildren(c))
+    } else delete node[children]
+  }
+  result.forEach(removeNullChildren)
   return result
 }