diff --git a/plugins/nextcloud_link/nextcloud_link.php b/plugins/nextcloud_link/nextcloud_link.php
index c1f9b9a8..0640d1a5 100644
--- a/plugins/nextcloud_link/nextcloud_link.php
+++ b/plugins/nextcloud_link/nextcloud_link.php
@@ -1,61 +1,61 @@
 <?php
 
 /**
  * A plugin that adds a task menu icon linking to the Nextcloud files
  *
  * @author Aleksander Machniak <machniak@apheleia-it.ch>
  *
  * Copyright (C) 2022, Apheleia IT AG <contact@apheleia-it.ch>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as
  * published by the Free Software Foundation, either version 3 of the
  * License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU Affero General Public License for more details.
  *
  * You should have received a copy of the GNU Affero General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 class nextcloud_link extends rcube_plugin
 {
     public $task = '?(?!login|logout).*';
 
 
     /**
      * Plugin initialization.
      */
     function init()
     {
         $this->rc = rcube::get_instance();
 
-        if ($this->rc->output->ajax_call || !empty($this->rc->output->env['framed'])) {
+        if ($this->rc->output->type !== 'html' || !empty($this->rc->output->env['framed'])) {
             return;
         }
 
         $this->load_config();
 
         $url = $this->rc->config->get('nextcloud_link_url');
 
         if (empty($url)) {
             return;
         }
 
         $this->add_button([
             'command'    => 'nextcloud',
             'class'      => 'button-nextcloud',
             'classsel'   => 'button-nextcloud button-selected',
             'innerclass' => 'button-inner',
             'label'      => '',
             'type'       => 'link'
         ], 'taskbar');
 
         $this->rc->output->add_footer("
 <style>#taskmenu a.button-nextcloud:before { content: \"\\f0c2\"; }</style>
 <script>\$('#taskmenu a.button-nextcloud').on('click', function () { window.open('$url', '_blank'); });</script>");
     }
 }