diff --git a/src/NodeFormAlter.php b/src/NodeFormAlter.php
index 9741d96..a5c3611 100644
--- a/src/NodeFormAlter.php
+++ b/src/NodeFormAlter.php
@@ -107,7 +107,7 @@ class NodeFormAlter {
       $menu_parent_selector = \Drupal::service('menu.parent_form_selector');
       $allowed_menus = [];
       // If the menu options are already visible to the editor, show everything.
-      if (!empty($form['menu']['#access'])) {
+      if (!isset($form['menu']['#access']) || $form['menu']['#access'] === TRUE) {
         $allowed_menus = array_merge($group_menus, $menu_ui_menus);
       }
       else {