diff --git a/htdocs/projet/tasks.php b/htdocs/projet/tasks.php
index eaec5ae0816..f89a7e3398f 100644
--- a/htdocs/projet/tasks.php
+++ b/htdocs/projet/tasks.php
@@ -300,7 +300,7 @@ if ($action == 'create' && $user->rights->projet->creer && (empty($object->third
 	print '</td></tr>';
 
 	print '<tr><td>'.$langs->trans("AffectedTo").'</td><td>';
-	$contactsofproject=$object->getListContactId('internal');
+	$contactsofproject=(! empty($object->id)?$object->getListContactId('internal'):'');
 	$form->select_users($user->id,'userid',0,'',0,'',$contactsofproject);
 	print '</td></tr>';