Add an event service provider.

app/Providers/EventServiceProvider.php

+<?php namespace App\Providers;
+
+use Illuminate\Contracts\Events\Dispatcher;
+use Illuminate\Events\ListenerServiceProvider as ServiceProvider;
+
+class EventServiceProvider extends ServiceProvider {
+
+	/**
+	 * The event handler mappings for the application.
+	 *
+	 * @var array
+	 */
+	protected $listen = [
+		'event.name' => [
+			'EventListener',
+		],
+	];
+
+}

config/app.php

@@ -101,6 +101,7 @@ return [
 		'App\Providers\AppServiceProvider',
 		'App\Providers\ArtisanServiceProvider',
 		'App\Providers\ErrorServiceProvider',
+		'App\Providers\EventServiceProvider',
 		'App\Providers\FilterServiceProvider',
 		'App\Providers\LogServiceProvider',
 		'App\Providers\RouteServiceProvider',