diff --git a/web/org.openbravo.retail.discounts.combo/app/model/business-logic/discounts-engine/engine/rules/combo-discount.js b/web/org.openbravo.retail.discounts.combo/app/model/business-logic/discounts-engine/engine/rules/combo-discount.js
index 60b977a..03a33ad 100644
--- a/web/org.openbravo.retail.discounts.combo/app/model/business-logic/discounts-engine/engine/rules/combo-discount.js
+++ b/web/org.openbravo.retail.discounts.combo/app/model/business-logic/discounts-engine/engine/rules/combo-discount.js
@@ -19,7 +19,7 @@
           OB.DEC.sub(unitsToFulfill, qtyUsed),
           this.getAvailableLineQty(participantLine)
         );
-        const unitPrice = this.getUnitLinePrice(participantLine);
+        const unitPrice = this.getOriginalUnitLinePrice(participantLine);
 
         if (qtyUsed >= unitsToFulfill) {
           return;