diff --git a/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php b/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
index 73109279fb..18e932b4fe 100644
--- a/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
+++ b/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
@@ -13,6 +13,7 @@ namespace Alchemy\Phrasea\Core\Provider;
 
 use Alchemy\Phrasea\Setup\ConfigurationTester;
 use Alchemy\Phrasea\Application;
+use Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade\PreSchemaUpgradeCollection;
 use Silex\Application as SilexApplication;
 use Silex\ServiceProviderInterface;
 
@@ -24,6 +25,10 @@ class ConfigurationTesterServiceProvider implements ServiceProviderInterface
         $app['phraseanet.configuration-tester'] = $app->share(function (Application $app) {
             return new ConfigurationTester($app);
         });
+
+        $app['phraseanet.pre-schema-upgrader'] = $app->share(function () {
+            return new PreSchemaUpgradeCollection();
+        });
     }
 
     public function boot(SilexApplication $app)
diff --git a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php
new file mode 100644
index 0000000000..035896f35e
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php
@@ -0,0 +1,42 @@
+<?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.
+ */
+
+namespace Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade;
+
+use Alchemy\Phrasea\Application;
+
+/**
+ * Collection of Doctrine schema pre-upgrades
+ */
+class PreSchemaUpgradeCollection
+{
+    /** @var PreSchemaUpgradeInterface[] */
+    private $upgrades = array();
+
+    public function __construct()
+    {
+        $this->upgrades[] = new Upgrade39();
+    }
+
+    /**
+     * Applies all applyable upgrades
+     *
+     * @param Application $app
+     */
+    public function apply(Application $app)
+    {
+        foreach ($this->upgrades as $upgrade) {
+            if ($upgrade->isApplyable($app)) {
+                $upgrade->apply($app['EM']);
+            }
+        }
+    }
+}
diff --git a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php
new file mode 100644
index 0000000000..e21f2423ff
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php
@@ -0,0 +1,38 @@
+<?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.
+ */
+
+namespace Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade;
+
+use Doctrine\ORM\EntityManager;
+use Alchemy\Phrasea\Application;
+
+/**
+ * Interface for DB schema upgrade that have to be done before Doctrine schema
+ * upgrade
+ */
+interface PreSchemaUpgradeInterface
+{
+    /**
+     * Applies the pre-upgrade/
+     *
+     * @param EntityManager $em
+     */
+    public function apply(EntityManager $em);
+
+    /**
+     * Returns true if the Upgrade is applyable
+     *
+     * @param Application $app
+     *
+     * @return Boolean
+     */
+    public function isApplyable(Application $app);
+}
diff --git a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/Upgrade39.php b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/Upgrade39.php
new file mode 100644
index 0000000000..937e70d5d2
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/Upgrade39.php
@@ -0,0 +1,45 @@
+<?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.
+ */
+
+namespace Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade;
+
+use Alchemy\Phrasea\Application;
+use Doctrine\ORM\EntityManager;
+
+class Upgrade39 implements PreSchemaUpgradeInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function apply(EntityManager $em)
+    {
+        $em->getConnection()->executeQuery('RENAME TABLE `feeds` TO `feeds_backup`');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isApplyable(Application $app)
+    {
+        $rs = $app['EM']->getConnection()->fetchAll('SHOW TABLE STATUS');
+        $found = false;
+
+        foreach ($rs as $row) {
+            if ('feeds' === $row['Name']) {
+                $found = true;
+                break;
+            }
+        }
+
+        return $found;
+    }
+}
+
diff --git a/lib/classes/appbox.php b/lib/classes/appbox.php
index aa569f34cf..214b809c64 100644
--- a/lib/classes/appbox.php
+++ b/lib/classes/appbox.php
@@ -295,6 +295,8 @@ class appbox extends base
 
         $upgrader->set_current_message($this->app->trans('Creating new tables'));
 
+        $app['phraseanet.pre-schema-upgrader']->apply($app);
+        
         $upgrader->add_steps_complete(1);
 
         /**