diff --git a/pkg/image/tasks/image_copy_from_url_task.go b/pkg/image/tasks/image_copy_from_url_task.go
index 393382bbe8..65dfb7a9bf 100644
--- a/pkg/image/tasks/image_copy_from_url_task.go
+++ b/pkg/image/tasks/image_copy_from_url_task.go
@@ -55,10 +55,7 @@ func (self *ImageCopyFromUrlTask) OnInit(ctx context.Context, obj db.IStandalone
 		if err != nil {
 			return nil, err
 		}
-		md5 := resp.Header.Get("Content-Md5")
-		if len(md5) == 0 {
-			md5 = resp.Header.Get("x-oss-meta-yunion-os-checksum")
-		}
+		md5 := resp.Header.Get("x-oss-meta-yunion-os-checksum")
 		if len(md5) > 0 {
 			db.Update(image, func() error {
 				image.OssChecksum = md5