diff --git a/scoper.inc.php b/scoper.inc.php
index 91f4f78a..9b0ab4fd 100644
--- a/scoper.inc.php
+++ b/scoper.inc.php
@@ -44,6 +44,7 @@
     ],
     'exclude-namespaces' => [
         'Symfony\Polyfill',
+        'React\Promise',
         '/^Composer/',
     ],
     'exclude-constants' => [