diff --git a/core/metamodel.class.php b/core/metamodel.class.php
index 144b6ada32..9c3e428fd7 100644
--- a/core/metamodel.class.php
+++ b/core/metamodel.class.php
@@ -102,8 +102,8 @@ define('OPT_ATT_MUSTPROMPT', 16);
  *
  * @package     iTopORM
  */
-//define('MYSQL_ENGINE', 'innodb');
-define('MYSQL_ENGINE', 'myisam');
+define('MYSQL_ENGINE', 'innodb');
+//define('MYSQL_ENGINE', 'myisam');