diff --git a/src/VirtoCommerce.XCatalog.Core/Models/ExpProduct.cs b/src/VirtoCommerce.XCatalog.Core/Models/ExpProduct.cs
index ccda952..bc0dfbd 100644
--- a/src/VirtoCommerce.XCatalog.Core/Models/ExpProduct.cs
+++ b/src/VirtoCommerce.XCatalog.Core/Models/ExpProduct.cs
@@ -133,11 +133,6 @@ public virtual void ApplyRewards(CatalogItemAmountReward[] allRewards)
 
                 foreach (var reward in mappedRewards)
                 {
-                    foreach (var tierPrice in productPrice.TierPrices)
-                    {
-                        tierPrice.DiscountAmount = new Money(Math.Max(0, (productPrice.ListPrice - tierPrice.Price).Amount), productPrice.Currency);
-                    }
-
                     if (!reward.IsValid)
                     {
                         continue;
@@ -161,7 +156,7 @@ public virtual void ApplyRewards(CatalogItemAmountReward[] allRewards)
 
                         foreach (var tierPrice in productPrice.TierPrices)
                         {
-                            tierPrice.DiscountAmount += reward.GetRewardAmount(tierPrice.Price.Amount, 1);
+                            tierPrice.DiscountAmount += reward.GetRewardAmount(tierPrice.ActualPrice.Amount, 1);
                         }
                     }
                 }