diff --git a/weed/command/filer_sync.go b/weed/command/filer_sync.go
index dc954e805..292fb0956 100644
--- a/weed/command/filer_sync.go
+++ b/weed/command/filer_sync.go
@@ -11,7 +11,6 @@ import (
 	"github.com/seaweedfs/seaweedfs/weed/replication/sink"
 	"github.com/seaweedfs/seaweedfs/weed/replication/sink/filersink"
 	"github.com/seaweedfs/seaweedfs/weed/replication/source"
-	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
 	"github.com/seaweedfs/seaweedfs/weed/security"
 	statsCollect "github.com/seaweedfs/seaweedfs/weed/stats"
 	"github.com/seaweedfs/seaweedfs/weed/util"