diff --git a/lib/Centreon/Db/Manager/Manager.php b/lib/Centreon/Db/Manager/Manager.php
index 42dcb4cc76f290a9e2e1c50bcfe3470c949a54c9..044124b61f8e19a76fd060ed1ddfc1ce551bf27f 100644
--- a/lib/Centreon/Db/Manager/Manager.php
+++ b/lib/Centreon/Db/Manager/Manager.php
@@ -63,7 +63,6 @@ class Centreon_Db_Manager
         if (!isset($adapter) || !isset($config) || !is_array($config)) {
             throw new Exception('Missing adapter name and/or configuration array');
         }
-        $db = Zend_Db::factory($adapter, $config);
         self::$instances[$instanceName] = Zend_Db::factory($adapter, $config);
         return self::$instances[$instanceName];
     }