diff --git a/htdocs/install/upgrade2.php b/htdocs/install/upgrade2.php
index 1077e37f78e..9315769d756 100644
--- a/htdocs/install/upgrade2.php
+++ b/htdocs/install/upgrade2.php
@@ -455,6 +455,7 @@ if (! GETPOST('action','aZ09') || preg_match('/upgrade/i',GETPOST('action','aZ09
 			'MAIN_MODULE_DEPLACEMENT'=>'newboxdefonly',
 			'MAIN_MODULE_DON'=>'newboxdefonly',
 			'MAIN_MODULE_ECM'=>'newboxdefonly',
+			'MAIN_MODULE_EXTERNALSITE'=>'newboxdefonly',
 			'MAIN_MODULE_FACTURE'=>'newboxdefonly',
 			'MAIN_MODULE_FOURNISSEUR'=>'newboxdefonly',
 			'MAIN_MODULE_HOLIDAY'=>'newboxdefonly',