diff --git a/Resources/stubs/symfony2.php b/Resources/stubs/symfony2.php
deleted file mode 100644
index 5ae426bb2..000000000
--- a/Resources/stubs/symfony2.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-/*
- * This file is part of the Sonata Project package.
- *
- * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\OptionsResolver;
-
-if (!interface_exists('Symfony\Component\OptionsResolver\OptionsResolverInterface')) {
-    interface OptionsResolverInterface
-    {
-    }
-}
diff --git a/composer.json b/composer.json
index 7eadcfb20..b4a10752a 100644
--- a/composer.json
+++ b/composer.json
@@ -38,8 +38,7 @@
         "psr-4": { "Sonata\\BlockBundle\\": "" },
         "exclude-from-classmap": [
             "Tests/"
-        ],
-        "files": ["Resources/stubs/symfony2.php"]
+        ]
     },
     "autoload-dev": {
         "psr-4": { "Sonata\\BlockBundle\\Tests\\": "Tests/" }