diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-05-15.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-05-15.sql
index 589a931e4eae3..c374049226927 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-05-15.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-05-15.sql
@@ -42,7 +42,7 @@ CREATE TABLE IF NOT EXISTS `#__workflow_associations` (
   `stage_id` int(10) NOT NULL COMMENT 'Foreign Key to #__workflow_stages.id',
   `extension` varchar(50) NOT NULL,
   PRIMARY KEY (`item_id`, `extension`),
-  KEY `idx_item_stage_extension` (`item_id`, `stage_id`, `extension`)
+  KEY `idx_item_stage_extension` (`item_id`, `stage_id`, `extension`),
   KEY `idx_item_id` (`item_id`),
   KEY `idx_stage_id` (`stage_id`),
   KEY `idx_extension` (`extension`)