diff --git a/phpBB/language/en/common.php b/phpBB/language/en/common.php
index a08bccad1b..1f4fc9f6a8 100644
--- a/phpBB/language/en/common.php
+++ b/phpBB/language/en/common.php
@@ -169,6 +169,7 @@ $lang = array_merge($lang, array(
 		1	=> '%d character',
 		2	=> '%d characters',
 	),
+	// Special version to be used when describing ranges e.g. "min x characters and max y characters"
 	'CHARACTERS_XY'			=> array(
 		1	=> '%d character',
 		2	=> '%d characters',