diff --git a/src/renderer/src/components/choose-textbook/index.vue b/src/renderer/src/components/choose-textbook/index.vue
index 5a78a22..fbb4b1b 100644
--- a/src/renderer/src/components/choose-textbook/index.vue
+++ b/src/renderer/src/components/choose-textbook/index.vue
@@ -96,7 +96,7 @@ const changeBook = (data) => {
 
 const emitChangeBook = async () => {
   let curData = cloneDeep(toRaw(curNode.data))
-  let parentNode = findParentByChildId(treeData.value, curNode.id)
+  let parentNode = findParentByChildId(treeData.value, curData.id)
   curData.parentNode = toRaw(parentNode)
   const data = {
     textBook: {