diff --git a/htdocs/core/class/coreobject.class.php b/htdocs/core/class/coreobject.class.php
index 4cd3fe1b2ed..41aae05d74a 100644
--- a/htdocs/core/class/coreobject.class.php
+++ b/htdocs/core/class/coreobject.class.php
@@ -25,6 +25,7 @@
 
 require_once DOL_DOCUMENT_ROOT.'/core/class/commonobject.class.php';
 
+// TODO Remove this class (used in Expensereportik and ExpenseReportRule
 class CoreObject extends CommonObject
 {
     public $withChild = true;