diff --git a/classes/controller.php b/classes/controller.php
index 1df85340..4a943089 100644
--- a/classes/controller.php
+++ b/classes/controller.php
@@ -87,9 +87,11 @@ class AdminController
     public function execute()
     {
         if (strtolower($_SERVER['REQUEST_METHOD']) == 'post') {
-            if (!isset($this->post['admin-nonce']) || !Utils::verifyNonce($this->post['admin-nonce'], 'admin-form')) {
-                $this->admin->setMessage('Unauthorized', 'error');
-                return false;
+            if (method_exists('Utils', 'getNonce')) {
+                if (!isset($this->post['admin-nonce']) || !Utils::verifyNonce($this->post['admin-nonce'], 'admin-form')) {
+                    $this->admin->setMessage('Unauthorized', 'error');
+                    return false;
+                }
             }
         }