diff --git a/security/OpenID/Auth/OpenID/Consumer.php b/security/OpenID/Auth/OpenID/Consumer.php
index d75b842d3..a2f39472d 100644
--- a/security/OpenID/Auth/OpenID/Consumer.php
+++ b/security/OpenID/Auth/OpenID/Consumer.php
@@ -1298,7 +1298,7 @@ class Auth_OpenID_GenericConsumer {
         $resp = $this->fetcher->post($server_url, $body);
 
         if ($resp === null) {
-            return Auth_OpenID_ServerErrorContainer::fromMessage('');
+            return null;
         }
 
         $response_message = Auth_OpenID_Message::fromKVForm($resp->body);