diff -u b/src/Plugin/Block/MenuBlock.php b/src/Plugin/Block/MenuBlock.php
--- b/src/Plugin/Block/MenuBlock.php
+++ b/src/Plugin/Block/MenuBlock.php
@@ -58,8 +58,9 @@
    */
   public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
     $instance = parent::create($container, $configuration, $plugin_id, $plugin_definition);
-    $instance->setMenuParentFormSelector($container->get('menu.parent_form_selector'));
-    $instance->setEntityTypeManager($container->get('entity_type.manager'));
+    $instance
+      ->setMenuParentFormSelector($container->get('menu.parent_form_selector'))
+      ->setEntityTypeManager($container->get('entity_type.manager'));
     return $instance;
   }
 
@@ -80,9 +81,11 @@
    *
    * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
    *   The entity type manager service.
+   * @return $this
    */
   public function setEntityTypeManager(EntityTypeManagerInterface $entity_type_manager) {
     $this->entityTypeManager = $entity_type_manager;
+    return $this;
   }
 
   /**