diff --git a/phpBB/language/en/common.php b/phpBB/language/en/common.php
index cda58dc804..c40a16487b 100644
--- a/phpBB/language/en/common.php
+++ b/phpBB/language/en/common.php
@@ -454,6 +454,9 @@ $lang += array(
 		'Oct'		=> 'Oct',
 		'Nov'		=> 'Nov',
 		'Dec'		=> 'Dec',
+
+		'TODAY'		=> 'Today',
+		'YESTERDAY'	=> 'Yesterday',
 	),
 	
 	'tz'				=> array(