diff --git a/src/Plugin/WebformElement/WebformMarkup.php b/src/Plugin/WebformElement/WebformMarkup.php
index 3fef2106..b8794236 100644
--- a/src/Plugin/WebformElement/WebformMarkup.php
+++ b/src/Plugin/WebformElement/WebformMarkup.php
@@ -47,7 +47,6 @@ class WebformMarkup extends WebformMarkupBase {
       '#type' => 'webform_html_editor',
       '#title' => $this->t('HTML markup'),
       '#description' => $this->t('Enter custom HTML into your webform.'),
-      '#format' => FALSE,
     ];
     return $form;
   }