diff --git a/internal/rpc/group/group.go b/internal/rpc/group/group.go
index 82f523ce5..27cdb2f2c 100644
--- a/internal/rpc/group/group.go
+++ b/internal/rpc/group/group.go
@@ -781,6 +781,7 @@ func (s *groupServer) JoinGroup(ctx context.Context, req *pbGroup.JoinGroupReq)
 	s.Notification.JoinGroupApplicationNotification(ctx, req)
 	return resp, nil
 }
+}
 
 func (s *groupServer) QuitGroup(ctx context.Context, req *pbGroup.QuitGroupReq) (*pbGroup.QuitGroupResp, error) {
 	resp := &pbGroup.QuitGroupResp{}
diff --git a/pkg/rpcclient/notification/group.go b/pkg/rpcclient/notification/group.go
index 5f4453a83..81dfffa0b 100644
--- a/pkg/rpcclient/notification/group.go
+++ b/pkg/rpcclient/notification/group.go
@@ -614,11 +614,16 @@ func (g *GroupNotificationSender) GroupMutedNotification(ctx context.Context, gr
 	if err != nil {
 		return err
 	}
-	user, err := g.getGroupMember(ctx, groupID, mcontext.GetOpUserID(ctx))
+	users, err := g.getGroupMembers(ctx, groupID, []string{mcontext.GetOpUserID(ctx)})
 	if err != nil {
 		return err
 	}
-	tips := &sdkws.GroupMutedTips{Group: group, OpUser: user}
+	tips := &sdkws.GroupMutedTips{Group: group}
+	if len(users) > 0 {
+		tips.OpUser = users[0]
+	} else {
+		tips.OpUser = &sdkws.GroupMemberFullInfo{UserID: mcontext.GetOpUserID(ctx), GroupID: groupID}
+	}
 	return g.msgClient.Notification(ctx, mcontext.GetOpUserID(ctx), group.GroupID, constant.GroupMutedNotification, tips)
 }