diff --git a/ecrire/inc/email_valide.php b/ecrire/inc/email_valide.php
index 4cc5b13a7b821aa38735e560a25fc16d7d272e68..cf0375457712befc9fb883b03a8bf028e130ca03 100644
--- a/ecrire/inc/email_valide.php
+++ b/ecrire/inc/email_valide.php
@@ -31,7 +31,7 @@ if (!defined('_ECRIRE_INC_VERSION')) {
  **/
 function inc_email_valide_dist($adresses) {
 	// eviter d'injecter n'importe quoi dans preg_match
-	if (!is_string($adresses)) {
+	if (!$adresses or !is_string($adresses)) {
 		return false;
 	}