diff --git a/install/sql/ispconfig3.sql b/install/sql/ispconfig3.sql
index 270ad5093283ff58c05b775e9b6bc6886db56c86..d6355542fedfbae23ee7fa964eb47ff7021c7349 100644
--- a/install/sql/ispconfig3.sql
+++ b/install/sql/ispconfig3.sql
@@ -398,7 +398,8 @@ CREATE TABLE `mail_forwarding` (
   `type` enum('alias','aliasdomain','forward','catchall') NOT NULL default 'alias',
   `active` enum('n','y') NOT NULL,
   PRIMARY KEY  (`forwarding_id`),
-  KEY `server_id` (`server_id`,`source`)
+  KEY `server_id` (`server_id`,`source`),
+  KEY `type` (`type`)
 ) ENGINE=MyISAM AUTO_INCREMENT=1;
 
 -- --------------------------------------------------------