diff --git a/program/steps/mail/show.inc b/program/steps/mail/show.inc
index 4256458d3..b0dcf389b 100644
--- a/program/steps/mail/show.inc
+++ b/program/steps/mail/show.inc
@@ -35,7 +35,7 @@ if ($_GET['_uid']) {
     if ($RCMAIL->action=='preview' && $OUTPUT->template_exists('messagepreview'))
         $OUTPUT->send('messagepreview');
     else {
-      $RCMAIL->action = 'list';
+      rcmail_overwrite_action('');
       return;
     }
   }