diff --git a/libraries/config.default.php b/libraries/config.default.php
index e1e49bd1b5..652bdda4c6 100644
--- a/libraries/config.default.php
+++ b/libraries/config.default.php
@@ -2472,9 +2472,13 @@ $cfg['DefaultLang'] = 'en';
 $cfg['DefaultConnectionCollation'] = 'utf8_unicode_ci';
 
 /**
- * Force: always use this language
- * $cfg['Lang'] = 'en';
+ * Force: always use this language, e.g. 'en'
  *
+ * @global string $cfg['Lang']
+ */
+$cfg['Lang'] = '';
+
+/**
  * Regular expression to limit listed languages, e.g. '^(cs|en)' for Czech and
  * English only
  *