diff --git a/frontend/src/components/pure/ms-minder-editor/main/mainEditor.vue b/frontend/src/components/pure/ms-minder-editor/main/mainEditor.vue
index 8c5af3485f..8dad666736 100644
--- a/frontend/src/components/pure/ms-minder-editor/main/mainEditor.vue
+++ b/frontend/src/components/pure/ms-minder-editor/main/mainEditor.vue
@@ -291,7 +291,7 @@
   watch(
     () => importJson.value.treePath,
     (arr) => {
-      currentTreePath.value = arr;
+      currentTreePath.value = arr || [];
     }
   );