diff --git a/install/lang/be/langconfig.php b/install/lang/be/langconfig.php
index 70ef6dfd50b..42033634443 100644
--- a/install/lang/be/langconfig.php
+++ b/install/lang/be/langconfig.php
@@ -29,5 +29,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
+$string['parentlanguage'] = '';
 $string['thisdirection'] = 'ltr';
 $string['thislanguage'] = 'Беларуская';