diff --git a/lib/plugins/config/admin.php b/lib/plugins/config/admin.php
index e0b9a8472486bdd9d67b30756623f34055e38b73..7a8fa049ce2724ffdbfe42ddb195141a3350fcf2 100644
--- a/lib/plugins/config/admin.php
+++ b/lib/plugins/config/admin.php
@@ -79,7 +79,7 @@ class admin_plugin_config extends DokuWiki_Admin_Plugin {
         // save state & force a page reload to get the new settings to take effect
         $_SESSION['PLUGIN_CONFIG'] = array('state' => 'updated', 'time' => time());
         $this->_close_session();
-        header("Location: ".wl($ID)."?do=admin&page=config");
+        header("Location: ".wl($ID,'do=admin&page=config'));
         exit();
       }