diff --git a/phpBB/language/en/posting.php b/phpBB/language/en/posting.php
index b3acb7f290..8733fc5b10 100644
--- a/phpBB/language/en/posting.php
+++ b/phpBB/language/en/posting.php
@@ -184,7 +184,7 @@ $lang = array_merge($lang, array(
 	'SMILIES_ARE_ON'			=> 'Smilies are <em>ON</em>',
 	'STICKY_ANNOUNCE_TIME_LIMIT'=> 'Sticky/Announcement time limit',
 	'STICK_TOPIC_FOR'			=> 'Stick topic for',
-	'STICK_TOPIC_FOR_EXPLAIN'	=> 'Enter 0 or leave blank for a never ending Sticky/Announcement.',
+	'STICK_TOPIC_FOR_EXPLAIN'	=> 'Enter 0 or leave blank for a never ending Sticky/Announcement. Please note that this number is relative to the date of the post.',
 	'STYLES_TIP'				=> 'Tip: Styles can be applied quickly to selected text.',
 
 	'TOO_FEW_CHARS'				=> 'Your message contains too few characters.',