Set the root controller namespace.

app/Providers/RouteServiceProvider.php

@@ -1,6 +1,7 @@
 <?php namespace App\Providers;
 
 use Illuminate\Routing\Router;
+use Illuminate\Contracts\Routing\UrlGenerator;
 use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
 
 class RouteServiceProvider extends ServiceProvider {
@@ -22,11 +23,12 @@ class RouteServiceProvider extends ServiceProvider {
 	 * Register any model bindings or pattern based filters.
 	 *
 	 * @param  \Illuminate\Routing\Router  $router
+	 * @param  \Illuminate\Contracts\Routing\UrlGenerator  $url
 	 * @return void
 	 */
-	public function before(Router $router)
+	public function before(Router $router, UrlGenerator $url)
 	{
-		//
+		$url->setRootControllerNamespace('App\Http\Controllers');
 	}
 
 	/**