diff --git a/weed/server/master_grpc_server.go b/weed/server/master_grpc_server.go
index 93ecefb74..f3a2ee013 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
 				int64(heartbeat.MaxVolumeCount))
 			glog.V(0).Infof("added volume server %v:%d", heartbeat.GetIp(), heartbeat.GetPort())
 			if err := stream.Send(&master_pb.HeartbeatResponse{
-				VolumeSizeLimit:        uint64(ms.option.VolumeSizeLimitMB) * 1024 * 1024,
+				VolumeSizeLimit: uint64(ms.option.VolumeSizeLimitMB) * 1024 * 1024,
 			}); err != nil {
 				glog.Warningf("SendHeartbeat.Send volume size to %s:%d %v", dn.Ip, dn.Port, err)
 				return err
diff --git a/weed/stats/metrics.go b/weed/stats/metrics.go
index 25117ae72..161cc1cda 100644
--- a/weed/stats/metrics.go
+++ b/weed/stats/metrics.go
@@ -107,7 +107,6 @@ var (
 			Help:      "Bucketed histogram of s3 request processing time.",
 			Buckets:   prometheus.ExponentialBuckets(0.0001, 2, 24),
 		}, []string{"type"})
-
 )
 
 func init() {