diff --git a/rootfs/etc/confd/templates/config.inc.php.tmpl b/rootfs/etc/confd/templates/config.inc.php.tmpl
index 221f68f..d91c281 100644
--- a/rootfs/etc/confd/templates/config.inc.php.tmpl
+++ b/rootfs/etc/confd/templates/config.inc.php.tmpl
@@ -35,7 +35,7 @@ $config['username_domain'] = '%d';
 $config['username_domain_forced'] = true;
 $config['password_charset'] = 'UTF-8';
 
-$config['plugins'] = array('archive', 'zipdownload');
+$config['plugins'] = array('archive', 'managesieve', 'zipdownload');
 
 $config['spellcheck_engine'] = 'pspell';
 $config['default_charset'] = 'UTF-8';