diff --git a/weed/filesys/wfs.go b/weed/filesys/wfs.go
index 9443bc0bf..b41d76cd6 100644
--- a/weed/filesys/wfs.go
+++ b/weed/filesys/wfs.go
@@ -3,8 +3,8 @@ package filesys
 import (
 	"context"
 	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/storage"
 	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/storage"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"math"
 	"os"
diff --git a/weed/replication/sink/filersink/filer_sink.go b/weed/replication/sink/filersink/filer_sink.go
index 9960634f6..509f75116 100644
--- a/weed/replication/sink/filersink/filer_sink.go
+++ b/weed/replication/sink/filersink/filer_sink.go
@@ -25,7 +25,7 @@ type FilerSink struct {
 	replication       string
 	collection        string
 	ttlSec            int32
-	diskType       string
+	diskType          string
 	dataCenter        string
 	grpcDialOption    grpc.DialOption
 	address           string
diff --git a/weed/s3api/s3api_object_handlers.go b/weed/s3api/s3api_object_handlers.go
index c9e124328..4c408110a 100644
--- a/weed/s3api/s3api_object_handlers.go
+++ b/weed/s3api/s3api_object_handlers.go
@@ -223,7 +223,7 @@ func (s3a *S3ApiServer) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *h
 
 }
 
-func doDeleteEmptyDirectories(client filer_pb.SeaweedFilerClient, directoriesWithDeletion map[string]int) (newDirectoriesWithDeletion map[string]int){
+func doDeleteEmptyDirectories(client filer_pb.SeaweedFilerClient, directoriesWithDeletion map[string]int) (newDirectoriesWithDeletion map[string]int) {
 	var allDirs []string
 	for dir, _ := range directoriesWithDeletion {
 		allDirs = append(allDirs, dir)
diff --git a/weed/util/bounded_tree/bounded_tree.go b/weed/util/bounded_tree/bounded_tree.go
index e49c1e50a..3a8a22a9c 100644
--- a/weed/util/bounded_tree/bounded_tree.go
+++ b/weed/util/bounded_tree/bounded_tree.go
@@ -70,7 +70,6 @@ func (t *BoundedTree) ensureVisited(n *Node, currentPath util.FullPath, componen
 	} else {
 		// fmt.Printf("ensure %v\n", currentPath)
 
-
 		children, err := visitFn(currentPath)
 		if err != nil {
 			glog.V(0).Infof("failed to visit %s: %v", currentPath, err)