diff --git a/reference/filesystem/functions/readfile.xml b/reference/filesystem/functions/readfile.xml
index 6dee455335..1b635079a4 100644
--- a/reference/filesystem/functions/readfile.xml
+++ b/reference/filesystem/functions/readfile.xml
@@ -80,8 +80,6 @@ if (file_exists($file)) {
     header('Cache-Control: must-revalidate');
     header('Pragma: public');
     header('Content-Length: ' . filesize($file));
-    ob_clean();
-    flush();
     readfile($file);
     exit;
 }