diff --git a/install/lang/uk/langconfig.php b/install/lang/uk/langconfig.php
index da943c3f229..c9cc68400e4 100644
--- a/install/lang/uk/langconfig.php
+++ b/install/lang/uk/langconfig.php
@@ -29,7 +29,5 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-// Warning: this parentlanguage value is not a valid language code!
-// $string['parentlanguage'] = 'parentlanguage';
 $string['thisdirection'] = 'ltr';
 $string['thislanguage'] = 'Українська';