diff --git a/weed/server/master_grpc_server.go b/weed/server/master_grpc_server.go
index 2cd9ef4a4..94e050259 100644
--- a/weed/server/master_grpc_server.go
+++ b/weed/server/master_grpc_server.go
@@ -71,7 +71,7 @@ func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServ
 			dc := ms.Topo.GetOrCreateDataCenter(dcName)
 			rack := dc.GetOrCreateRack(rackName)
 			dn = rack.GetOrCreateDataNode(heartbeat.Ip, int(heartbeat.Port), heartbeat.PublicUrl, heartbeat.MaxVolumeCounts)
-			glog.V(0).Infof("added %d volume server %v:%d", dn.Counter, heartbeat.GetIp(), heartbeat.GetPort())
+			glog.V(0).Infof("added volume server %d: %v:%d", dn.Counter, heartbeat.GetIp(), heartbeat.GetPort())
 			if err := stream.Send(&master_pb.HeartbeatResponse{
 				VolumeSizeLimit: uint64(ms.option.VolumeSizeLimitMB) * 1024 * 1024,
 			}); err != nil {