diff --git a/build/build.php b/build/build.php
index 769f7fa36e439..22ebe1705507a 100644
--- a/build/build.php
+++ b/build/build.php
@@ -123,6 +123,7 @@
 	'phpunit.xml.dist',
 	'tests',
 	'travisci-phpunit.xml',
+	'libraries/joomla/crypt/README.md',
 );
 
 /*