--- phplist.module	2009-04-09 12:33:07.000000000 +0200
+++ phplist-414206.module	2009-04-09 12:34:17.000000000 +0200
@@ -302,7 +302,7 @@ function phplist_list_roles() {
   
   if (count($options) > 0) {
     // Add the "all" option
-    $options = array_merge(array("<strong>". t('All'). "</strong>"), $options);
+    $options = array(0 => "<strong>". t('All'). "</strong>") + $options;
   }
   
   while ($role = db_fetch_array($roles)) {