diff --git a/sql/mysql/install/tables.sql b/sql/mysql/install/tables.sql
index 30353f0..4a5311c 100644
--- a/sql/mysql/install/tables.sql
+++ b/sql/mysql/install/tables.sql
@@ -383,10 +383,12 @@ CREATE TABLE folders (
   parent_folder_ids text,
   full_path text,
   inherit_parent_folder_permission int(11) default NULL,
+  permission_folder_id int(11) default NULL,
   UNIQUE KEY id (id),
   KEY fk_parent_id (parent_id),
   KEY fk_creator_id (creator_id),
-  KEY fk_unit_id (unit_id)
+  KEY fk_unit_id (unit_id),
+  KEY permission_folder_id (permission_folder_id)
 ) TYPE=InnoDB;
 
 -- --------------------------------------------------------
diff --git a/sql/mysql/upgrade/1.2.4-to-1.2.5.sql b/sql/mysql/upgrade/1.2.4-to-1.2.5.sql
index 72dec65..604df4e 100644
--- a/sql/mysql/upgrade/1.2.4-to-1.2.5.sql
+++ b/sql/mysql/upgrade/1.2.4-to-1.2.5.sql
@@ -413,3 +413,6 @@ CREATE TABLE `zseq_browse_criteria` (
 ) TYPE=MyISAM;
 
 INSERT INTO `zseq_browse_criteria` SELECT MAX(`id`) FROM `browse_criteria`;
+
+ALTER TABLE `folders` ADD `permission_folder_id` INT;
+ALTER TABLE `folders` ADD INDEX ( `permission_folder_id` ) ;