diff --git a/htdocs/compta/bank/class/account.class.php b/htdocs/compta/bank/class/account.class.php
index 16a9c45cc2a..1db6ec18cc6 100644
--- a/htdocs/compta/bank/class/account.class.php
+++ b/htdocs/compta/bank/class/account.class.php
@@ -910,6 +910,8 @@ class Account extends CommonObject
 	        $langs->load("banks");
 	        $now=dol_now();
 
+            require_once DOL_DOCUMENT_ROOT.'/core/class/WorkboardResponse.class.php';
+
 	        $response = new WorkboardResponse();
 	        $response->warning_delay=$conf->bank->rappro->warning_delay/60/60/24;
 	        $response->label=$langs->trans("TransactionsToConciliate");