diff --git a/internal/rpc/msg/group_notification.go b/internal/rpc/msg/group_notification.go
index b24789e23..8d18657a2 100644
--- a/internal/rpc/msg/group_notification.go
+++ b/internal/rpc/msg/group_notification.go
@@ -183,7 +183,16 @@ func groupNotification(contentType int32, m proto.Message, sendID, groupID, recv
 	n.SendID = sendID
 	if groupID != "" {
 		n.RecvID = groupID
-		n.SessionType = constant.GroupChatType
+		group, err := imdb.GetGroupInfoByGroupID(groupID)
+		if err != nil {
+			log.NewError(operationID, "GetGroupInfoByGroupID failed ", err.Error(), groupID)
+		}
+		switch group.GroupType {
+		case constant.NormalGroup:
+			n.SessionType = constant.GroupChatType
+		default:
+			n.SessionType = constant.SuperGroupChatType
+		}
 	} else {
 		n.RecvID = recvUserID
 		n.SessionType = constant.SingleChatType
diff --git a/pkg/common/constant/constant.go b/pkg/common/constant/constant.go
index fdb1dcb83..ff857ef5c 100644
--- a/pkg/common/constant/constant.go
+++ b/pkg/common/constant/constant.go
@@ -161,9 +161,9 @@ const (
 	GroupStatusMuted     = 3
 
 	//GroupType
-	NormalGroup     = 0
-	SuperGroup      = 1
-	DepartmentGroup = 2
+	NormalGroup  = 0
+	SuperGroup   = 1
+	WorkingGroup = 2
 
 	GroupBaned          = 3
 	GroupBanPrivateChat = 4