diff --git a/scoper.inc.php b/scoper.inc.php
index 73a8a55dd..c3fdc2d23 100644
--- a/scoper.inc.php
+++ b/scoper.inc.php
@@ -23,9 +23,6 @@
 
 return [
     'exclude-files' => $jetBrainStubs,
-    'exclude-namespaces' => [
-        'Symfony\Polyfill'
-    ],
     'exclude-classes' => [
         IsolatedFinder::class,
     ],