diff --git a/ecrire/public/balises.php b/ecrire/public/balises.php
index a15120d76a9c05dd4c4d2b322df1936ccb9ad0f8..846630de31bac4f3351ae763a0da1edb04d2c80f 100644
--- a/ecrire/public/balises.php
+++ b/ecrire/public/balises.php
@@ -382,8 +382,9 @@ function balise_EXPOSE_dist($p) {
 
 	if (($v = interprete_argument_balise(1,$p))!==NULL){
 		$on = $v;
-		$off = interprete_argument_balise(2,$p);
-
+		if (($v = interprete_argument_balise(2,$p))!==NULL)
+			$off = $v;
+	
 		// autres filtres
 		array_shift($p->param);
 	}