diff --git a/src/renderer/src/components/choose-textbook/index.vue b/src/renderer/src/components/choose-textbook/index.vue
index f57ff89..82b0483 100644
--- a/src/renderer/src/components/choose-textbook/index.vue
+++ b/src/renderer/src/components/choose-textbook/index.vue
@@ -238,8 +238,7 @@ const handleNodeClick = (data, node) => {
   const parentNode = node.parent.data;
 
   if (Array.isArray(parentNode)) {
-    let node = parentNode.filter(item => item.id == currentNode.id)
-    currentNode.parentNode = { ...(node[0]) }
+    currentNode.parentNode = null
   }
   else {
     currentNode.parentNode = parentNode