diff --git a/vendor/github.com/ncw/swift/swift.go b/vendor/github.com/ncw/swift/swift.go
index e5be4ebc4..1ad8fcc15 100644
--- a/vendor/github.com/ncw/swift/swift.go
+++ b/vendor/github.com/ncw/swift/swift.go
@@ -1737,6 +1737,9 @@ func (c *Connection) Object(container string, objectName string) (info Object, h
 			return
 		}
 	}
+	//HACK
+	//Currently ceph doestn't return Last-Modified header for DLO manifest without any segments
+	//Currently it affects all versions of ceph http://tracker.ceph.com/issues/15812
 	if resp.Header.Get("Last-Modified") != "" {
 		info.ServerLastModified = resp.Header.Get("Last-Modified")
 		if info.LastModified, err = time.Parse(http.TimeFormat, info.ServerLastModified); err != nil {