diff --git a/cmd/checkout/checkout_builder.go b/cmd/checkout/checkout_builder.go
index df8262d..8ccb362 100644
--- a/cmd/checkout/checkout_builder.go
+++ b/cmd/checkout/checkout_builder.go
@@ -113,8 +113,8 @@ func BuildCheckoutOrderPayload(grain *checkout.CheckoutGrain, meta *CheckoutMeta
 		MerchantReference1: grain.Id.String(),
 		MerchantURLS: &CheckoutMerchantURLS{
 			Terms:        fmt.Sprintf("%s/terms", meta.SiteUrl),
-			Checkout:     fmt.Sprintf("%s/checkout?order_id={checkout.order.id}", meta.SiteUrl),
-			Confirmation: fmt.Sprintf("%s/confirmation/{checkout.order.id}", meta.SiteUrl),
+			Checkout:     fmt.Sprintf("%s/checkout?order_id={checkout.order.id}&provider=klarna", meta.SiteUrl),
+			Confirmation: fmt.Sprintf("%s/confirmation?order_id={checkout.order.id}&provider=klarna", meta.SiteUrl),
 			Notification: "https://cart.k6n.net/payment/klarna/notification",
 			Validation:   "https://cart.k6n.net/payment/klarna/validate",
 			Push:         "https://cart.k6n.net/payment/klarna/push?order_id={checkout.order.id}",