diff --git a/lib/Doctrine/Repositories/OrderRepository.php b/lib/Doctrine/Repositories/OrderRepository.php
index a4446ad9ad..df57a3f8b0 100644
--- a/lib/Doctrine/Repositories/OrderRepository.php
+++ b/lib/Doctrine/Repositories/OrderRepository.php
@@ -12,6 +12,18 @@ use Doctrine\ORM\EntityRepository;
  */
 class OrderRepository extends EntityRepository
 {
+    /**
+     * Returns the orders initiated by a given user.
+     *
+     * @param \User_Adapter $user
+     *
+     * @return array
+     */
+    public function findByUser(\User_Adapter $user)
+    {
+        return $this->findBy(array('usrId' => $user->get_id()));
+    }
+
     /**
      * Returns an array of all the orders, starting at $offsetStart, limited to $perPage
      *
diff --git a/lib/classes/User/Adapter.php b/lib/classes/User/Adapter.php
index 0509f8a1a5..a874a0bfff 100644
--- a/lib/classes/User/Adapter.php
+++ b/lib/classes/User/Adapter.php
@@ -768,6 +768,11 @@ class User_Adapter implements User_Interface, cache_cacheableInterface
             $this->app['EM']->remove($export);
         }
 
+        $repo = $this->app['EM']->getRepository('Entities\Order');
+        foreach ($repo->findByUser($this) as $order) {
+            $this->app['EM']->remove($order);
+        }
+
         $this->app['EM']->flush();
 
         $sql = 'UPDATE usr SET usr_login = :usr_login , usr_mail = null
@@ -796,11 +801,6 @@ class User_Adapter implements User_Interface, cache_cacheableInterface
         $stmt->execute(array(':usr_id' => $this->get_id()));
         $stmt->closeCursor();
 
-        $sql = 'DELETE FROM `order` WHERE usr_id = :usr_id';
-        $stmt = $this->app['phraseanet.appbox']->get_connection()->prepare($sql);
-        $stmt->execute(array(':usr_id' => $this->get_id()));
-        $stmt->closeCursor();
-
         $sql = 'DELETE FROM sselnew WHERE usr_id = :usr_id';
         $stmt = $this->app['phraseanet.appbox']->get_connection()->prepare($sql);
         $stmt->execute(array(':usr_id' => $this->get_id()));