diff --git a/auth-server-auth-code.md b/auth-server-auth-code.md
index 26e27b48..759f409a 100755
--- a/auth-server-auth-code.md
+++ b/auth-server-auth-code.md
@@ -140,7 +140,7 @@ $router->post('/signin', function (Request $request) use ($server) {
 
         $error = new \League\OAuth2\Server\Util\AccessDeniedException;
 
-        $redirectUri = new \League\OAuth2\Server\Util\RedirectUri(
+        $redirectUri = \League\OAuth2\Server\Util\RedirectUri::make(
             $authParams['redirect_uri'],
             [
                 'error' =>  $error->errorType,