diff --git a/weed/storage/backend/memory_map/memory_map_backend.go b/weed/storage/backend/memory_map/memory_map_backend.go
index 57e3faedd..bac105022 100644
--- a/weed/storage/backend/memory_map/memory_map_backend.go
+++ b/weed/storage/backend/memory_map/memory_map_backend.go
@@ -50,7 +50,7 @@ func (mmf *MemoryMappedFile) Close() error {
 func (mmf *MemoryMappedFile) GetStat() (datSize int64, modTime time.Time, err error) {
 	stat, e := mmf.mm.File.Stat()
 	if e == nil {
-		return mmf.mm.End_of_file+1, stat.ModTime(), nil
+		return mmf.mm.End_of_file + 1, stat.ModTime(), nil
 	}
 	return 0, time.Time{}, err
 }
diff --git a/weed/storage/backend/s3_backend/s3_sessions.go b/weed/storage/backend/s3_backend/s3_sessions.go
index ef4f8c137..cd7b7ad47 100644
--- a/weed/storage/backend/s3_backend/s3_sessions.go
+++ b/weed/storage/backend/s3_backend/s3_sessions.go
@@ -12,7 +12,7 @@ import (
 )
 
 var (
-	s3Sessions = make(map[string]s3iface.S3API)
+	s3Sessions   = make(map[string]s3iface.S3API)
 	sessionsLock sync.RWMutex
 )
 
@@ -45,10 +45,10 @@ func createSession(awsAccessKeyId, awsSecretAccessKey, region string) (s3iface.S
 		return nil, fmt.Errorf("create aws session in region %s: %v", region, err)
 	}
 
-	t:= s3.New(sess)
+	t := s3.New(sess)
 
 	s3Sessions[region] = t
 
 	return t, nil
 
-}
\ No newline at end of file
+}