diff --git a/pkg/storage/fs/s3ng/blobstore/blobstore.go b/pkg/storage/fs/s3ng/blobstore/blobstore.go
index 4fa391ebbb..9c744e7540 100644
--- a/pkg/storage/fs/s3ng/blobstore/blobstore.go
+++ b/pkg/storage/fs/s3ng/blobstore/blobstore.go
@@ -71,7 +71,7 @@ func (bs *Blobstore) Upload(node *node.Node, source string) error {
 	}
 	defer reader.Close()
 
-	_, err = bs.client.PutObject(context.Background(), bs.bucket, bs.path(node), reader, node.Blobsize, minio.PutObjectOptions{ContentType: "application/octet-stream", SendContentMd5: false})
+	_, err = bs.client.PutObject(context.Background(), bs.bucket, bs.path(node), reader, node.Blobsize, minio.PutObjectOptions{ContentType: "application/octet-stream", SendContentMd5: true})
 
 	if err != nil {
 		return errors.Wrapf(err, "could not store object '%s' into bucket '%s'", bs.path(node), bs.bucket)