diff --git a/db/routines/vn/procedures/client_userDisable.sql b/db/routines/vn/procedures/client_userDisable.sql
index da3c0efa1..779ffd688 100644
--- a/db/routines/vn/procedures/client_userDisable.sql
+++ b/db/routines/vn/procedures/client_userDisable.sql
@@ -21,9 +21,7 @@ BEGIN
 			AND a.id IS NULL
 			AND u.active
 			AND c.created < util.VN_CURDATE() - INTERVAL vMonths MONTH 
-			AND u.role NOT IN (
-				SELECT id FROM `role` r WHERE r.name = 'supplier'
-			)
+			AND NOT u.role = (SELECT id FROM `role` WHERE name = 'supplier')
 			AND u.id NOT IN (
 				SELECT DISTINCT c.id
 					FROM client c