diff --git a/lib/Alchemy/Phrasea/Core/Version.php b/lib/Alchemy/Phrasea/Core/Version.php
index 4256eaa90c..a2ea29e75c 100644
--- a/lib/Alchemy/Phrasea/Core/Version.php
+++ b/lib/Alchemy/Phrasea/Core/Version.php
@@ -18,7 +18,7 @@ namespace Alchemy\Phrasea\Core;
  */
 class Version
 {
-    protected static $number = '3.8.4-alpha.2';
+    protected static $number = '3.8.4-alpha.3';
     protected static $name = 'Diplodocus';
 
     public static function getNumber()
diff --git a/lib/classes/patch/384alpha3a.php b/lib/classes/patch/384alpha3a.php
new file mode 100644
index 0000000000..847edc30a9
--- /dev/null
+++ b/lib/classes/patch/384alpha3a.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2014 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Alchemy\Phrasea\Application;
+use Symfony\Component\Finder\Finder;
+use Symfony\Component\Filesystem\Filesystem;
+
+class patch_384alpha3a implements patchInterface
+{
+    /** @var string */
+    private $release = '3.8.4-alpha.3';
+
+    /** @var array */
+    private $concern = array(base::APPLICATION_BOX);
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get_release()
+    {
+        return $this->release;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function require_all_upgrades()
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function concern()
+    {
+        return $this->concern;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function apply(base $appbox, Application $app)
+    {
+        $config = $app['phraseanet.configuration']->getConfig();
+
+        $config['api_cors'] = array(
+            'enabled' => false,
+            'allow_credentials' => false,
+            'allow_origin'    => array(),
+            'allow_headers' => array(),
+            'allow_methods' => array(),
+            'expose_headers' => array(),
+            'max_age' => 0,
+            'hosts' => array(),
+        );
+
+        $app['phraseanet.configuration']->setConfig($config);
+
+        return true;
+    }
+}