fixed typo

src/Symfony/Bundle/TwigBundle/DependencyInjection/TwigExtension.php

@@ -57,7 +57,7 @@ class TwigExtension extends Extension
         $container->setParameter('twig.form.resources', $config['form']['resources']);
 
         $reflClass = new \ReflectionClass('Symfony\Bridge\Twig\Extension\FormExtension');
-        $container->getDefinition('twig.loader')->addMethodCall('addPath', array(dirname(dirname($reflClass->getFileName()))));
+        $container->getDefinition('twig.loader')->addMethodCall('addPath', array(dirname(dirname($reflClass->getFileName())).'/Resources/views/Form'));
 
         if (!empty($config['globals'])) {
             $def = $container->getDefinition('twig');