diff --git a/core/lib/Drupal/Core/Form/FormBuilder.php b/core/lib/Drupal/Core/Form/FormBuilder.php
index 9bdf1f1..fa7d138 100644
--- a/core/lib/Drupal/Core/Form/FormBuilder.php
+++ b/core/lib/Drupal/Core/Form/FormBuilder.php
@@ -865,15 +865,15 @@ public function doBuildForm($form_id, &$element, FormStateInterface &$form_state
   /**
    * Method to ensure every form element pass the safe check.
    *
-   * @param  array $element
+   * @param array $element
    *   - The form element.
-   * @param  FormStateInterface $form_state
+   * @param FormStateInterface $form_state
    *   - The form state of the current form.
    *
    * @return array
    *   - The form element marked as safe.
    */
-  protected function formSafeCheck(array $element, FormStateInterface $form_state) {
+  public static function formSafeCheck(array $element, FormStateInterface $form_state) {
     // Filtering keys which are expected to contain HTML.
     $markup_keys = array(
       '#description',