diff --git a/upload/source/function/function_post.php b/upload/source/function/function_post.php
index f26e60a0c20d45cdc57fbe22d7e09d0885f4e510..961d911c0ac9111cf9e360cc69d467e6fb94207b 100644
--- a/upload/source/function/function_post.php
+++ b/upload/source/function/function_post.php
@@ -571,7 +571,7 @@ function messagecutstr($str, $length = 0, $dot = ' ...') {
 	}
 	$language = lang('forum/misc');
 	loadcache(array('bbcodes_display', 'bbcodes', 'smileycodes', 'smilies', 'smileytypes', 'domainwhitelist'));
-	$bbcodes = 'b|i|u|p|color|size|font|align|list|indent|float';
+	$bbcodes = 'b|i|u|p|color|backcolor|size|font|align|list|indent|float';
 	$bbcodesclear = 'email|code|free|table|tr|td|img|swf|flash|attach|media|audio|groupid|payto'.($_G['cache']['bbcodes_display'][$_G['groupid']] ? '|'.implode('|', array_keys($_G['cache']['bbcodes_display'][$_G['groupid']])) : '');
 	$str = strip_tags(preg_replace(array(
 			"/\[hide=?\d*\](.*?)\[\/hide\]/is",