diff --git a/mail/inc/class.mail_ui.inc.php b/mail/inc/class.mail_ui.inc.php
index cf60ed0b9f..4db38b14fc 100644
--- a/mail/inc/class.mail_ui.inc.php
+++ b/mail/inc/class.mail_ui.inc.php
@@ -3843,7 +3843,7 @@ blockquote[type=cite] {
 	 */
 	function ajax_flagMessages($_flag, $_messageList, $_sendJsonResponse=true)
 	{
-		if(mail_bo::$debug); error_log(__METHOD__."->".$_flag.':'.array2string($_messageList));
+		if(mail_bo::$debug) error_log(__METHOD__."->".$_flag.':'.array2string($_messageList));
 		if ($_messageList=='all' || !empty($_messageList['msg']))
 		{
 			if ($_messageList=='all')