diff --git a/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php b/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php
index c35c6a5..ca66472 100644
--- a/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php
+++ b/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php
@@ -265,6 +265,8 @@ abstract class CheckoutFlowBase extends PluginBase implements CheckoutFlowInterf
     }
     $form['actions'] = $this->actions($form, $form_state);
 
+    $form['#attached']['library'][] = 'core/drupal.form';
+
     return $form;
   }