diff --git a/core/modules/views_ui/src/Form/Ajax/ConfigHandler.php b/core/modules/views_ui/src/Form/Ajax/ConfigHandler.php
index 7113892..e290789 100644
--- a/core/modules/views_ui/src/Form/Ajax/ConfigHandler.php
+++ b/core/modules/views_ui/src/Form/Ajax/ConfigHandler.php
@@ -184,6 +184,7 @@ public function buildForm(array $form, FormStateInterface $form_state, Request $
         '#ajax' => array(
           'url' => Url::fromRoute('<current>'),
         ),
+        '#button_type' => 'danger',
       );
     }