Index: typo3/sysext/openid/lib/php-openid/Auth/OpenID/Consumer.php
===================================================================
--- typo3/sysext/openid/lib/php-openid/Auth/OpenID/Consumer.php	(revision 17369)
+++ typo3/sysext/openid/lib/php-openid/Auth/OpenID/Consumer.php	(working copy)
@@ -666,7 +666,7 @@
                                         '_completeInvalid');
 
         return call_user_func_array(array(&$this, $method),
-                                    array($message, $endpoint, $return_to));
+                                    array($message, &$endpoint, $return_to));
     }
 
     /**