diff --git a/core/modules/system/src/Form/PrepareModulesEntityUninstallForm.php b/core/modules/system/src/Form/PrepareModulesEntityUninstallForm.php
index bbc5951..f682b42 100644
--- a/core/modules/system/src/Form/PrepareModulesEntityUninstallForm.php
+++ b/core/modules/system/src/Form/PrepareModulesEntityUninstallForm.php
@@ -167,6 +167,9 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
    *   The entity type ID from which data will be deleted.
    * @param array|\ArrayAccess $context
    *   The batch context array, passed by reference.
+   *
+   * @internal
+   *   This batch callback is only meant to be used by this form.
    */
   public static function deleteContentEntities($entity_type_id, &$context) {
     $storage = \Drupal::entityTypeManager()->getStorage($entity_type_id);