diff --git a/setup/moduleinstallation.class.inc.php b/setup/moduleinstallation.class.inc.php
index 6b8a5fdae..84fa07b09 100644
--- a/setup/moduleinstallation.class.inc.php
+++ b/setup/moduleinstallation.class.inc.php
@@ -25,7 +25,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-class ModuleInstallation extends DBObject
+class ModuleInstallation extends cmdbAbstractObject
 {
 	public static function Init()
 	{
@@ -66,7 +66,7 @@ class ModuleInstallation extends DBObject
  * @copyright   Copyright (C) 2021 Combodo SARL
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
-class ExtensionInstallation extends DBObject
+class ExtensionInstallation extends cmdbAbstractObject
 {
 	public static function Init()
 	{