diff -u b/modules/payment/src/Plugin/Commerce/CheckoutPane/PaymentInformation.php b/modules/payment/src/Plugin/Commerce/CheckoutPane/PaymentInformation.php
--- b/modules/payment/src/Plugin/Commerce/CheckoutPane/PaymentInformation.php
+++ b/modules/payment/src/Plugin/Commerce/CheckoutPane/PaymentInformation.php
@@ -33,6 +33,9 @@
     return $form;
   }
 
+  /**
+   * {@inheritdoc}
+   */
   public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
     parent::submitConfigurationForm($form, $form_state);