diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
index 9846a9a90fec..d91743e5c0da 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
@@ -56,7 +56,7 @@ protected function describeRouteCollection(RouteCollection $routes, array $optio
 
             if ($showControllers) {
                 $controller = $route->getDefault('_controller');
-                $row[] = $this->formatCallable($controller);
+                $row[] = $controller ? $this->formatCallable($controller) : '';
             }
 
             $tableRows[] = $row;