diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index 99a6f759206..af88178fe27 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -305,9 +305,9 @@ if (empty($reshook))
 
 				$object->generateDocument($model, $outputlangs, $hidedetails, $hidedesc, $hideref);
 			}
+		} else {
+			setEventMessages($object->error, $object->errors, 'errors');
 		}
-		elseif ($result < 0)
-			dol_print_error($db, $object->error);
 	} elseif ($action == 'setdate_livraison' && $usercancreate)
 	{
 		$result = $object->setDeliveryDate($user, dol_mktime(12, 0, 0, $_POST['date_livraisonmonth'], $_POST['date_livraisonday'], $_POST['date_livraisonyear']));