diff --git a/core/modules/page/lib/Drupal/page/PageFormController.php b/core/modules/page/lib/Drupal/page/PageFormController.php
index 6684a61..69bdc27 100644
--- a/core/modules/page/lib/Drupal/page/PageFormController.php
+++ b/core/modules/page/lib/Drupal/page/PageFormController.php
@@ -34,7 +34,7 @@ public function form(array $form, array &$form_state, EntityInterface $page) {
         'exists' => 'page_load',
         'source' => array('label'),
       ),
-      '#disabled' => (bool) $page->id(),
+      '#disabled' => !$page->isNew(),
     );
 
     // Get list of layouts and expose that for page layout selection.