diff --git a/groupmenu.module b/groupmenu.module
index 3ef651a..a219e37 100644
--- a/groupmenu.module
+++ b/groupmenu.module
@@ -97,6 +97,7 @@ function groupmenu_form_alter(&$form, FormStateInterface $form_state, $form_id)
 function groupmenu_form_node_form_alter(&$form, FormStateInterface $form_state) {
   $account = \Drupal::currentUser();
   $node = $form_state->getFormObject()->getEntity();
+  $groups = [];
   // If a node is being edited at /node/%/edit, look for groups that it is a
   // part of. If not, try to use the group ID from the URL.
   if ($node->id()) {
@@ -115,13 +116,15 @@ function groupmenu_form_node_form_alter(&$form, FormStateInterface $form_state)
   if (!empty($groups) || !$account->hasPermission('administer menu')) {
     $menu_options = &$form['menu']['link']['menu_parent']['#options'];
     if ($menu_options) {
-      $menu_exist = groupmenu_filter_parent_options($menu_options, $groups);
-      if ($menu_exist) {
+      $filtered_menu_options = groupmenu_filter_parent_options($menu_options, $groups);
+      if ($filtered_menu_options) {
         // If we have access to menu options, this means we have permission to
-        // edit the group menu.
+        // edit the group menu. When the menu options were added by Group menu,
+        // access needs to be restored again as the Menu module removed it.
         $form['menu']['#access'] = TRUE;
       }
       else {
+        // If there are no menu options available, remove the menu settings tab.
         $form['menu']['#access'] = FALSE;
       }
     }
@@ -144,11 +147,8 @@ function groupmenu_filter_parent_options(array &$options, array $groups = []) {
   $allowed_menus = [];
   $groupmenu_service = \Drupal::service('groupmenu.menu');
   if (!empty($groups)) {
-    foreach($groups as $group) {
-      $allowed_menus_raw[] = $groupmenu_service->loadUserGroupMenusByGroup('edit', $group->id());
-    }
-    foreach ($allowed_menus_raw as $menu) {
-      $allowed_menus = array_merge($allowed_menus, $menu);
+    foreach ($groups as $group) {
+      $allowed_menus = array_merge($allowed_menus, $groupmenu_service->loadUserGroupMenusByGroup('edit', $group->id()));
     }
   }
   else {