diff --git a/setup/webmail.sh b/setup/webmail.sh
index 38b800dd..88cdd950 100755
--- a/setup/webmail.sh
+++ b/setup/webmail.sh
@@ -134,7 +134,7 @@ cat > $RCM_CONFIG <<EOF;
 \$config['product_name'] = '$PRIMARY_HOSTNAME Webmail';
 \$config['cipher_method'] = 'AES-256-CBC'; # persistent login cookie and potentially other things
 \$config['des_key'] = '$SECRET_KEY'; # 37 characters -> ~256 bits for AES-256, see above
-\$config['plugins'] = array('html5_notifier', 'archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'persistent_login', 'carddav', 'contextmenu');
+\$config['plugins'] = array('html5_notifier', 'archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'persistent_login', 'carddav', 'markasjunk', 'contextmenu');
 \$config['skin'] = 'elastic';
 \$config['login_autocomplete'] = 2;
 \$config['password_charset'] = 'UTF-8';