diff --git a/library/Unl/XsrfToken.php b/library/Unl/XsrfToken.php
index 3713afa94f997a9b805f02160ef4f0a713eb5723..b31e745ae8611c2937b4eaaea4c84c129864b889 100644
--- a/library/Unl/XsrfToken.php
+++ b/library/Unl/XsrfToken.php
@@ -75,7 +75,7 @@ class Unl_XsrfToken
      */
     public function verify($tokenId, $onceOnly = TRUE)
     {
-        if (Zend_Registry::get('log') instanceof Zend_Log) {
+        if (Zend_Registry::isRegistered('log') && Zend_Registry::get('log') instanceof Zend_Log) {
             $log = Zend_Registry::get('log');
         } else {
             $log = new Zend_Log();