diff --git a/lib/db/member.php b/lib/db/member.php
index a7a75e0e..9d70b843 100644
--- a/lib/db/member.php
+++ b/lib/db/member.php
@@ -36,7 +36,7 @@ class Member extends \OCA\Documents\Db{
 	protected $loadStatement = 'SELECT * FROM `*PREFIX*documents_member` WHERE `member_id`= ?';
 
 	public static function getGuestPostfix(){
-		return '(' . Config::getL10n()->t('guest') . ')';
+		return '(' . \OCA\Documents\Config::getL10n()->t('guest') . ')';
 	}