// Simple server based on https://bshaffer.github.io/oauth2-server-php-docs/cookbook
-// include our OAuth2 Server object
-require_once __DIR__.'/server.php';
+// Include the common auth system files (including the OAuth2 Server object).
+require_once(__DIR__.'/authsystem.inc.php');
$request = OAuth2\Request::createFromGlobals();
$response = new OAuth2\Response();