diff --git a/lib/plugins/config/admin.php b/lib/plugins/config/admin.php
index 49712b73f5e52ac550aac54d22d3585b04eb2af0..a628578ca24a519111ab232857b2a1f617aa5b3a 100644
--- a/lib/plugins/config/admin.php
+++ b/lib/plugins/config/admin.php
@@ -110,6 +110,7 @@ class admin_plugin_config extends DokuWiki_Admin_Plugin {
         ptln('<div class="success">'.$this->getLang('updated').'</div>');
 
       ptln('<form action="'.script().'" method="post">');
+      ptln('<input type="hidden" name="id" value="'.$ID.'" />');
       formSecurityToken();
       $this->_print_h1('dokuwiki_settings', $this->getLang('_header_dokuwiki'));