diff --git a/daux.phar b/daux.phar
index 4372092..75f493e 100755
Binary files a/daux.phar and b/daux.phar differ
diff --git a/libs/Compiler.php b/libs/Compiler.php
index c98a144..640890e 100644
--- a/libs/Compiler.php
+++ b/libs/Compiler.php
@@ -54,6 +54,7 @@ class Compiler
             ->ignoreVCS(true)
             ->exclude('Tests')
             ->in(__DIR__ . '/../vendor/symfony/console')
+            ->in(__DIR__ . '/../vendor/symfony/polyfill-mbstring')
             ->in(__DIR__ . '/../vendor/guzzlehttp/guzzle/src/')
             ->in(__DIR__ . '/../vendor/guzzlehttp/ringphp/src/')
             ->in(__DIR__ . '/../vendor/guzzlehttp/streams/src/')