diff --git a/htdocs/projet/tasks/contact.php b/htdocs/projet/tasks/contact.php
index f0bdce25fca..722e3c9aaae 100644
--- a/htdocs/projet/tasks/contact.php
+++ b/htdocs/projet/tasks/contact.php
@@ -245,7 +245,7 @@ if ($id > 0 || ! empty($ref))
 		    $object->next_prev_filter=" fk_projet in (".$projectsListId.")";
 		}
 		else $object->next_prev_filter=" fk_projet = ".$projectstatic->id;
-	    print $form->showrefnav($object,'id',$linkback,1,'rowid','ref','',$param);
+		print $form->showrefnav($object,'ref',$linkback,1,'ref','ref','',$param);
 		print '</td></tr>';
 
 		// Label