diff --git a/BTCPayServer/Controllers/InvoiceController.UI.cs b/BTCPayServer/Controllers/InvoiceController.UI.cs
index a3d6b8961..59e1273a9 100644
--- a/BTCPayServer/Controllers/InvoiceController.UI.cs
+++ b/BTCPayServer/Controllers/InvoiceController.UI.cs
@@ -183,7 +183,7 @@ namespace BTCPayServer.Controllers
             var model = new PaymentModel()
             {
                 CryptoCode = network.CryptoCode,
-                paymentMethodId = paymentMethodId.ToString(),
+                PaymentMethodId = paymentMethodId.ToString(),
                 ServerUrl = HttpContext.Request.GetAbsoluteRoot(),
                 OrderId = invoice.OrderId,
                 InvoiceId = invoice.Id,
@@ -208,7 +208,7 @@ namespace BTCPayServer.Controllers
                                           .Where(i => i.Network != null)
                                           .Select(kv=> new PaymentModel.AvailableCrypto()
                                             {
-                                                paymentMethodId = kv.GetId().ToString(),
+                                                PaymentMethodId = kv.GetId().ToString(),
                                                 CryptoImage = "/" + kv.Network.CryptoImagePath,
                                                 Link = Url.Action(nameof(Checkout), new { invoiceId = invoiceId, paymentMethodId = kv.GetId().ToString() })
                                             }).Where(c => c.CryptoImage != "/")
diff --git a/BTCPayServer/Models/InvoicingModels/PaymentModel.cs b/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
index 35295db16..0d71c1a24 100644
--- a/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
+++ b/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
@@ -9,7 +9,7 @@ namespace BTCPayServer.Models.InvoicingModels
     {
         public class AvailableCrypto
         {
-            public string paymentMethodId { get; set; }
+            public string PaymentMethodId { get; set; }
             public string CryptoImage { get; set; }
             public string Link { get; set; }
         }
@@ -41,6 +41,6 @@ namespace BTCPayServer.Models.InvoicingModels
         public string NetworkFeeDescription { get; internal set; }
         public int MaxTimeMinutes { get; internal set; }
         public string PaymentType { get; internal set; }
-        public string paymentMethodId { get; internal set; }
+        public string PaymentMethodId { get; internal set; }
     }
 }