diff --git a/BTCPayServer/Controllers/UILNURLController.cs b/BTCPayServer/Controllers/UILNURLController.cs
index e4c974d41..c639f9f19 100644
--- a/BTCPayServer/Controllers/UILNURLController.cs
+++ b/BTCPayServer/Controllers/UILNURLController.cs
@@ -409,7 +409,7 @@ namespace BTCPayServer
             if (i.Type != InvoiceType.TopUp)
             {
                 min = i.GetPaymentMethod(pmi).Calculate().Due.ToDecimal(MoneyUnit.Satoshi);
-                max = min;
+                max = item?.Price?.Type == ViewPointOfSaleViewModel.Item.ItemPrice.ItemPriceType.Minimum ? null :  min;
             }
 
             if (!string.IsNullOrEmpty(username))