diff --git a/weed/command/filer_copy.go b/weed/command/filer_copy.go
index e20087ce4..a196d25f3 100644
--- a/weed/command/filer_copy.go
+++ b/weed/command/filer_copy.go
@@ -585,8 +585,7 @@ func detectMimeType(f *os.File) string {
 
 func (worker *FileCopyWorker) saveDataAsChunk(reader io.Reader, name string, offset int64) (chunk *filer_pb.FileChunk, err error) {
 
-	var finalFileId string
-	uploadResult, flushErr, _ := operation.UploadWithRetry(
+	finalFileId, uploadResult, flushErr, _ := operation.UploadWithRetry(
 		worker,
 		&filer_pb.AssignVolumeRequest{
 			Count:       1,
@@ -604,7 +603,6 @@ func (worker *FileCopyWorker) saveDataAsChunk(reader io.Reader, name string, off
 			PairMap:           nil,
 		},
 		func(host, fileId string) string {
-			finalFileId = fileId
 			return fmt.Sprintf("http://%s/%s", host, fileId)
 		},
 		reader,
diff --git a/weed/operation/upload_content.go b/weed/operation/upload_content.go
index 76f55523a..c5d2ce7c9 100644
--- a/weed/operation/upload_content.go
+++ b/weed/operation/upload_content.go
@@ -80,10 +80,10 @@ func init() {
 
 // UploadWithRetry will retry both assigning volume request and uploading content
 // The option parameter does not need to specify UploadUrl and Jwt, which will come from assigning volume.
-func UploadWithRetry(filerClient filer_pb.FilerClient, assignRequest *filer_pb.AssignVolumeRequest, uploadOption *UploadOption, genFileUrlFn func(host, fileId string) string, reader io.Reader) (uploadResult *UploadResult, err error, data []byte) {
+func UploadWithRetry(filerClient filer_pb.FilerClient, assignRequest *filer_pb.AssignVolumeRequest, uploadOption *UploadOption, genFileUrlFn func(host, fileId string) string, reader io.Reader) (fileId string, uploadResult *UploadResult, err error, data []byte) {
 	doUploadFunc := func() error {
 
-		var fileId, host string
+		var host string
 		var auth security.EncodedJwt
 
 		// grpc assign volume