diff --git a/app/src/asset/anno.ts b/app/src/asset/anno.ts
index b22df4f40..f3b2d1204 100644
--- a/app/src/asset/anno.ts
+++ b/app/src/asset/anno.ts
@@ -1,7 +1,6 @@
 import {fetchPost} from "../util/fetch";
 import {setPosition} from "../util/setPosition";
 import {hasClosestByAttribute, hasClosestByClassName} from "../protyle/util/hasClosest";
-import * as dayjs from "dayjs";
 import {setStorageVal, writeText} from "../protyle/util/compatibility";
 import {getAllModels} from "../layout/getAll";
 import {focusByRange} from "../protyle/util/selection";
@@ -531,8 +530,7 @@ const getHightlightCoordsByRect = (pdf: any, color: string, rectResizeElement: H
         }];
 
     const id = Lute.NewNodeID();
-    const content = pdf.appConfig.file.replace(location.origin, "").substr(8).replace(/-\d{14}-\w{7}.pdf$/, "") +
-        `-P${startPage.id}-${dayjs().format("YYYYMMDDHHmmss")}`;
+    const content = `${pdf.appConfig.file.replace(location.origin, "").substr(8).replace(/-\d{14}-\w{7}.pdf$/, "")}-P${startPage.id}-${id}`;
     const result = [{
         index: startPage.id - 1,
         coords: [startSelected],