diff --git a/app/src/util/mount.ts b/app/src/util/mount.ts
index 626a5092c..9f0e576e4 100644
--- a/app/src/util/mount.ts
+++ b/app/src/util/mount.ts
@@ -96,7 +96,8 @@ export const mountHelp = () => {
     const notebookId = Constants.HELP_PATH[window.siyuan.config.appearance.lang as "zh_CN" | "en_US"];
     fetchPost("/api/notebook/removeNotebook", {notebook: notebookId, callback: Constants.CB_MOUNT_REMOVE}, () => {
         fetchPost("/api/notebook/openNotebook", {
-            notebook: notebookId
+            notebook: notebookId,
+            app: Constants.SIYUAN_APPID,
         });
     });
 };