diff --git a/src/onebot11/main.ts b/src/onebot11/main.ts
index 9728ed737..fb630bb15 100644
--- a/src/onebot11/main.ts
+++ b/src/onebot11/main.ts
@@ -128,10 +128,14 @@ export class NapCatOnebot11 {
     const groupListener = new GroupListener();
     groupListener.onGroupNotifiesUpdated = async (doubt, notifies) => {
       for (let i = 0; i < notifies.length; i++) {
-        let UserInfo_User1 = await NTQQUserApi.getUserDetailInfo(notifies[i].user1.uid);
-        let UserInfo_User2 = await NTQQUserApi.getUserDetailInfo(notifies[i].user2.uid);
-        uid2UinMap[UserInfo_User1.uid] = UserInfo_User1.uin;
-        uid2UinMap[UserInfo_User2.uid] = UserInfo_User2.uin;
+        if (notifies[i].user1.uid && notifies[i].user1.uid.startsWith('u_')) {
+          let UserInfo_User1 = await NTQQUserApi.getUserDetailInfo(notifies[i].user1.uid);
+          uid2UinMap[UserInfo_User1.uid] = UserInfo_User1.uin;
+        }
+        if (notifies[i].user2.uid && notifies[i].user2.uid.startsWith('u_')) {
+          let UserInfo_User2 = await NTQQUserApi.getUserDetailInfo(notifies[i].user2.uid);
+          uid2UinMap[UserInfo_User2.uid] = UserInfo_User2.uin;
+        }
       }
       //console.log('ob11 onGroupNotifiesUpdated', notifies[0]);
       this.postGroupNotifies(notifies).then().catch(e => logError('postGroupNotifies error: ', e));