diff --git a/BTCPayServer/Controllers/InvoiceController.UI.cs b/BTCPayServer/Controllers/InvoiceController.UI.cs
index 50a726e16..6a1ec5e95 100644
--- a/BTCPayServer/Controllers/InvoiceController.UI.cs
+++ b/BTCPayServer/Controllers/InvoiceController.UI.cs
@@ -211,7 +211,7 @@ namespace BTCPayServer.Controllers
ServerUrl = HttpContext.Request.GetAbsoluteRoot(),
OrderId = invoice.OrderId,
InvoiceId = invoice.Id,
- DefaultLang = storeBlob.DefaultLang ?? "en",
+ DefaultLang = storeBlob.DefaultLang ?? "en-US",
BtcAddress = paymentMethodDetails.GetPaymentDestination(),
OrderAmount = (accounting.TotalDue - accounting.NetworkFee).ToString(),
BtcDue = accounting.Due.ToString(),
diff --git a/BTCPayServer/Views/Stores/UpdateStore.cshtml b/BTCPayServer/Views/Stores/UpdateStore.cshtml
index 15d2a8a64..2065c53ec 100644
--- a/BTCPayServer/Views/Stores/UpdateStore.cshtml
+++ b/BTCPayServer/Views/Stores/UpdateStore.cshtml
@@ -116,7 +116,7 @@
Lightning nodes (Experimental)
A connection to a lightning charge node is required to generate lignting network enabled invoices.
- This is experimental and not advised for production so keep in mind:
+ This is experimental and not advised for production.