diff --git a/docs/en/index.rst b/docs/en/index.rst
index 58e148b2..dd65787c 100644
--- a/docs/en/index.rst
+++ b/docs/en/index.rst
@@ -165,7 +165,7 @@ like::
     {
         $result = $this->Authentication->getResult();
         // If the user is logged in send them away.
-        if ($result->isValid()) {
+        if ($result && $result->isValid()) {
             $target = $this->Authentication->getLoginRedirect() ?? '/home';
             return $this->redirect($target);
         }