diff --git a/lib/classes/patch/3804.php b/lib/classes/patch/3804.php
deleted file mode 100644
index 8e4301715e..0000000000
--- a/lib/classes/patch/3804.php
+++ /dev/null
@@ -1,61 +0,0 @@
-<?php
-
-/*
- * This file is part of Phraseanet
- *
- * (c) 2005-2013 Alchemy
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-use Alchemy\Phrasea\Application;
-
-class patch_3804 implements patchInterface
-{
-    /**
-     *
-     * @var string
-     */
-    private $release = '3.8.0.a3';
-
-    /**
-     *
-     * @var Array
-     */
-    private $concern = array(base::APPLICATION_BOX);
-
-    /**
-     *
-     * @return string
-     */
-    public function get_release()
-    {
-        return $this->release;
-    }
-
-    public function require_all_upgrades()
-    {
-        return false;
-    }
-
-    /**
-     *
-     * @return Array
-     */
-    public function concern()
-    {
-        return $this->concern;
-    }
-
-    /**
-     * @param base        $appbox
-     * @param Application $app
-     */
-    public function apply(base $appbox, Application $app)
-    {
-        $app['phraseanet.configuration']->setDefault('main', 'task-manager');
-
-        return true;
-    }
-}
diff --git a/tests/classes/patch/3804Test.php b/tests/classes/patch/3804Test.php
deleted file mode 100644
index 0b9684efbf..0000000000
--- a/tests/classes/patch/3804Test.php
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-class patch_3804Test extends PhraseanetPHPUnitAbstract
-{
-    /**
-     * @covers patch_3804::apply
-     */
-    public function testApply()
-    {
-        $app = self::$DI['app'];
-
-        $patch = new patch_3804();
-
-        $appbox = $this->getMockBuilder('appbox')
-            ->disableOriginalConstructor()
-            ->getMock();
-
-        $app['phraseanet.configuration'] = $this->getMock('Alchemy\Phrasea\Core\Configuration\ConfigurationInterface');
-        $app['phraseanet.configuration']->expects($this->once())
-            ->method('setDefault')
-            ->with('main', 'task-manager');
-
-        $this->assertTrue($patch->apply($appbox, $app));
-    }
-}