diff --git a/ecrire/inc/discuter.php b/ecrire/inc/discuter.php
index 0443f8dc8501c75b6230aff0621b6ffdeaaf6422..38886cd97587e28f9e1f308bd5a258a66d34e126 100644
--- a/ecrire/inc/discuter.php
+++ b/ecrire/inc/discuter.php
@@ -61,6 +61,6 @@ function inc_discuter_dist($id_article, $flag, $debut=1)
 		$res = formulaire_discuter($forum, $res, $debut, $total_afficher, 'articles', "id_article=$id_article");
 	} else $res ='';
 
-	return ajax_action_greffe("forum", '', $res);
+	return $res ? ajax_action_greffe("forum", '', $res): "";
 }
 ?>