diff --git a/db/routines/vn/procedures/ticket_recalcByScope.sql b/db/routines/vn/procedures/ticket_recalcByScope.sql
index b872d31631..ede755187c 100644
--- a/db/routines/vn/procedures/ticket_recalcByScope.sql
+++ b/db/routines/vn/procedures/ticket_recalcByScope.sql
@@ -26,6 +26,8 @@ BEGIN
 	DECLARE CONTINUE HANDLER FOR NOT FOUND SET vDone = TRUE;
 
 	CREATE OR REPLACE TEMPORARY TABLE tItems
+		(PRIMARY KEY (id))
+		ENGINE = MEMORY
 		SELECT DISTINCT t.id
 			FROM ticket t
 				JOIN sale s ON s.ticketFk = t.id