diff --git a/library/includes/online_userlist.php b/library/includes/online_userlist.php
index 578add55b..e057554eb 100644
--- a/library/includes/online_userlist.php
+++ b/library/includes/online_userlist.php
@@ -57,7 +57,7 @@ $sql = "
 	FROM " . BB_SESSIONS . " s, " . BB_USERS . " u
 	WHERE s.session_time > $time_online
 		AND u.user_id = s.session_user_id
-	GROUP BY s.session_user_id
+	GROUP BY u.username, u.user_id, u.user_opt, u.user_rank, u.user_level, s.session_user_id, s.session_logged_in, s.session_ip, s.session_time, s.session_start
 	ORDER BY u.username
 ";