diff --git a/ecrire/public/composer.php b/ecrire/public/composer.php
index 4e31d7c5b38cfcc1ddf69a4b30e6d17f06d5e7a5..a18d5331eb03764b2d20e04f247195b36d07316e 100644
--- a/ecrire/public/composer.php
+++ b/ecrire/public/composer.php
@@ -561,6 +561,7 @@ function calculer_jointnul($cle, $exp, $equiv='')
 	}
 }
 
+// http://doc.spip.org/@remplacer_jointnul
 function remplacer_jointnul($cle, $exp, $equiv='')
 {
 	if (!is_array($exp)) {