diff --git a/sql/mysql/upgrade/2.99.2/workflow.sql b/sql/mysql/upgrade/2.99.2/workflow.sql
index bbc3ded..d76025e 100644
--- a/sql/mysql/upgrade/2.99.2/workflow.sql
+++ b/sql/mysql/upgrade/2.99.2/workflow.sql
@@ -2,3 +2,6 @@ ALTER TABLE `workflow_states` ADD COLUMN `inform_descriptor_id` int(11) default 
 ALTER TABLE `workflow_transitions` CHANGE COLUMN `guard_permission_id` `guard_permission_id` int(11) default '0'; # was int(11) NOT NULL default '0'
 ALTER TABLE `workflow_transitions` ADD COLUMN `guard_group_id` int(11) default '0';
 ALTER TABLE `workflow_transitions` ADD COLUMN `guard_role_id` int(11) default '0';
+ALTER TABLE `workflow_transitions` ADD COLUMN `guard_condition_id` int(11) default NULL;
+ALTER TABLE `workflow_transitions` ADD INDEX `guard_condition` (`guard_condition_id`);
+