diff --git a/modules/acm_exception/acm_exception.services.yml b/modules/acm_exception/acm_exception.services.yml
index 2de98a6..b1c4f44 100644
--- a/modules/acm_exception/acm_exception.services.yml
+++ b/modules/acm_exception/acm_exception.services.yml
@@ -1,12 +1,14 @@
 services:
   acm_exception.route_exception_subscriber:
     class: Drupal\acm_exception\EventSubscriber\RouteExceptionSubscriber
+    arguments: ['@acm_exception.route_exception_handler']
     tags:
       - { name: 'event_subscriber' }
   acm_exception.route_exception_event_subscriber:
     class: Drupal\acm_exception\EventSubscriber\RouteExceptionEventSubscriber
+    arguments: ['@acm_exception.route_exception_handler']
     tags:
       - { name: 'event_subscriber' }
   acm_exception.route_exception_handler:
     class: Drupal\acm_exception\RouteExceptionHandler
-    arguments: ['@config.factory', '@logger.factory']
+    arguments: ['@config.factory', '@logger.factory', '@messenger']
diff --git a/modules/acm_exception/src/EventSubscriber/RouteExceptionEventSubscriber.php b/modules/acm_exception/src/EventSubscriber/RouteExceptionEventSubscriber.php
index 75c17c1..5113a53 100644
--- a/modules/acm_exception/src/EventSubscriber/RouteExceptionEventSubscriber.php
+++ b/modules/acm_exception/src/EventSubscriber/RouteExceptionEventSubscriber.php
@@ -3,6 +3,7 @@
 namespace Drupal\acm_exception\EventSubscriber;
 
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Drupal\acm_exception\RouteExceptionHandler;
 use Drupal\acm\RouteExceptionEvent;
 
 /**
@@ -10,6 +11,23 @@
  */
 class RouteExceptionEventSubscriber implements EventSubscriberInterface {
 
+  /**
+   * Route exception handler.
+   *
+   * @var \Drupal\acm_exception\RouteExceptionHandler
+   */
+  protected $routeExceptionHandler;
+
+  /**
+   * RouteExceptionEventSubscriber constructor.
+   *
+   * @param \Drupal\acm_exception\RouteExceptionHandler $route_exception_handler
+   *   Route exception handler.
+   */
+  public function __construct(RouteExceptionHandler $route_exception_handler) {
+    $this->routeExceptionHandler = $route_exception_handler;
+  }
+
   /**
    * User messaging for RouteExceptions.
    *
@@ -18,9 +36,8 @@ class RouteExceptionEventSubscriber implements EventSubscriberInterface {
    */
   public function onException(RouteExceptionEvent $event) {
     $exception = $event->getException();
-    $handler = \Drupal::service('acm_exception.route_exception_handler');
-    $handler->message($exception);
-    $handler->log($exception);
+    $this->routeExceptionHandler->message($exception);
+    $this->routeExceptionHandler->log($exception);
   }
 
   /**
diff --git a/modules/acm_exception/src/EventSubscriber/RouteExceptionSubscriber.php b/modules/acm_exception/src/EventSubscriber/RouteExceptionSubscriber.php
index 2d3592c..dfb8a34 100644
--- a/modules/acm_exception/src/EventSubscriber/RouteExceptionSubscriber.php
+++ b/modules/acm_exception/src/EventSubscriber/RouteExceptionSubscriber.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\acm_exception\EventSubscriber;
 
+use Drupal\acm_exception\RouteExceptionHandler;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
@@ -13,6 +14,23 @@
  */
 class RouteExceptionSubscriber implements EventSubscriberInterface {
 
+  /**
+   * Route exception handler.
+   *
+   * @var \Drupal\acm_exception\RouteExceptionHandler
+   */
+  protected $routeExceptionHandler;
+
+  /**
+   * RouteExceptionSubscriber constructor.
+   *
+   * @param \Drupal\acm_exception\RouteExceptionHandler $route_exception_handler
+   *   Route exception handler.
+   */
+  public function __construct(RouteExceptionHandler $route_exception_handler) {
+    $this->routeExceptionHandler = $route_exception_handler;
+  }
+
   /**
    * Catch all uncaught RouteException exceptions.
    *
@@ -25,8 +43,7 @@ public function onException(GetResponseForExceptionEvent $event) {
       return;
     }
 
-    $handler = \Drupal::service('acm_exception.route_exception_handler');
-    $redirect = $handler->getRedirect($exception);
+    $redirect = $this->routeExceptionHandler->getRedirect($exception);
     $event->setResponse(RedirectResponse::create($redirect, 302));
   }
 
diff --git a/modules/acm_exception/src/RouteExceptionHandler.php b/modules/acm_exception/src/RouteExceptionHandler.php
index 2170912..6d27537 100644
--- a/modules/acm_exception/src/RouteExceptionHandler.php
+++ b/modules/acm_exception/src/RouteExceptionHandler.php
@@ -5,6 +5,7 @@
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Logger\LoggerChannelFactory;
 use Drupal\Core\Url;
+use Drupal\Core\Messenger\MessengerInterface;
 use Drupal\acm\Connector\RouteException;
 
 /**
@@ -26,6 +27,13 @@ class RouteExceptionHandler {
    */
   private $logger;
 
+  /**
+   * The Messenger service.
+   *
+   * @var \Drupal\Core\Messenger\MessengerInterface
+   */
+  private $messenger;
+
   /**
    * Constructor.
    *
@@ -33,10 +41,13 @@ class RouteExceptionHandler {
    *   ConfigFactoryInterface object.
    * @param \Drupal\Core\Logger\LoggerChannelFactory $logger_factory
    *   LoggerChannelFactory object.
+   * @param \Drupal\Core\Messenger\MessengerInterface $messenger
+   *   The Messenger service.
    */
-  public function __construct(ConfigFactoryInterface $config_factory, LoggerChannelFactory $logger_factory) {
+  public function __construct(ConfigFactoryInterface $config_factory, LoggerChannelFactory $logger_factory, MessengerInterface $messenger) {
     $this->config = $config_factory->get('acm_exception.settings');
     $this->logger = $logger_factory->get('acm_exception');
+    $this->messenger = $messenger;
   }
 
   /**
@@ -48,7 +59,7 @@ public function __construct(ConfigFactoryInterface $config_factory, LoggerChanne
   public function message(RouteException $e) {
     $message = $this->getConfig('message', $e);
     if (!empty($message) && PHP_SAPI !== 'cli') {
-      drupal_set_message($message, 'error');
+      $this->messenger->addError($message);
     }
   }