diff --git a/db/routines/vn/procedures/sale_replaceItem.sql b/db/routines/vn/procedures/sale_replaceItem.sql
index 1d9f6ff71..fb68b3f3a 100644
--- a/db/routines/vn/procedures/sale_replaceItem.sql
+++ b/db/routines/vn/procedures/sale_replaceItem.sql
@@ -92,8 +92,8 @@ BEGIN
 	START TRANSACTION;
 
 	UPDATE sale
-		SET quantity = quantity - vQuantity
-		WHERE id = vSaleFk;
+		SET originalQuantity = quantity - vQuantity,
+			quantity = quantity - vQuantity
 
 	INSERT INTO vn.sale(ticketFk,
 			itemFk,