diff --git a/interfaces/payment-request.idl b/interfaces/payment-request.idl
index e3afbd47db3b4d..d930b57291e530 100644
--- a/interfaces/payment-request.idl
+++ b/interfaces/payment-request.idl
@@ -49,6 +49,8 @@ dictionary PaymentDetailsUpdate : PaymentDetailsBase {
   DOMString error;
   PaymentItem total;
   AddressErrors shippingAddressErrors;
+  PayerErrorFields payerErrors;
+  object paymentMethodErrors;
 };
 
 dictionary PaymentDetailsModifier {