diff -u b/core/modules/shortcut/lib/Drupal/shortcut/Entity/ShortcutSet.php b/core/modules/shortcut/lib/Drupal/shortcut/Entity/ShortcutSet.php
--- b/core/modules/shortcut/lib/Drupal/shortcut/Entity/ShortcutSet.php
+++ b/core/modules/shortcut/lib/Drupal/shortcut/Entity/ShortcutSet.php
@@ -61,7 +61,7 @@
    * @TODO this is still public because ConfigEntityBase::getExportProperties()
    * uses reflection to pick out the public properties to export.
    */
-  public $menu_link_uuids = array();
+  public $menuLinkUuids = array();
 
    /**
     * {@inheritdoc}
@@ -122,10 +122,10 @@
    */
   public function getMenuLinks() {
     $menu_links = array();
-    $menu_link_uuids = array_keys($this->getMenuLinksUuids());
+    $menuLinkUuids = array_keys($this->getMenuLinksUuids());
 
-    if (!empty($menu_link_uuids)) {
-      $menu_links = \Drupal::entityManager()->getStorageController('menu_link')->loadByProperties(array('uuid' => $menu_link_uuids));
+    if (!empty($menuLinkUuids)) {
+      $menu_links = \Drupal::entityManager()->getStorageController('menu_link')->loadByProperties(array('uuid' => $menuLinkUuids));
     }
 
     return $menu_links;
@@ -135,22 +135,22 @@
    * {@inheritdoc}
    */
   public function getMenuLinksUuids() {
-    return $this->get('menu_link_uuids');
+    return $this->get('menuLinkUuids');
   }
 
   /**
    * {@inheritdoc}
    */
   public function addMenuLink($menu_link_uuid) {
-    $this->menu_link_uuids[$menu_link_uuid] = $menu_link_uuid;
+    $this->menuLinkUuids[$menu_link_uuid] = $menu_link_uuid;
   }
 
   /**
    * {@inheritdoc}
    */
   public function removeMenuLink($menu_link_uuid) {
-    if (isset($this->menu_link_uuids[$menu_link_uuid])) {
-      unset($this->menu_link_uuids[$menu_link_uuid]);
+    if (isset($this->menuLinkUuids[$menu_link_uuid])) {
+      unset($this->menuLinkUuids[$menu_link_uuid]);
     }
   }
 
@@ -159,5 +159,5 @@
    */
   public function hasMenuLinks() {
-    return !empty($this->menu_link_uuids);
+    return !empty($this->menuLinkUuids);
   }
 }