diff --git a/htdocs/projet/tasks.php b/htdocs/projet/tasks.php
index d1b26453de9..b73f3456324 100644
--- a/htdocs/projet/tasks.php
+++ b/htdocs/projet/tasks.php
@@ -305,7 +305,14 @@ if ($action == 'create' && $user->rights->projet->creer && (empty($object->third
 
 	print '<tr><td>'.$langs->trans("AffectedTo").'</td><td>';
 	$contactsofproject=(! empty($object->id)?$object->getListContactId('internal'):'');
-	$form->select_dolusers($user->id,'userid',0,'',0,'',$contactsofproject);
+	if (count($contactsofproject))
+	{
+		print $form->select_dolusers($user->id,'userid',0,'',0,'',$contactsofproject);
+	}
+	else
+	{
+		print $langs->trans("NoUserAssignedToTheProject");
+	}
 	print '</td></tr>';
 
 	// Date start