diff --git a/js/save-user_flag.js b/js/save-user_flag.js
index d588a424..4ca90f9f 100644
--- a/js/save-user_flag.js
+++ b/js/save-user_flag.js
@@ -1,5 +1,5 @@
 function user_flag() {
-	var flagStorage = "flag_" + document.getElementsByName('board')[0].value;
+	var flagStorage = "flag_" + board_name;
 	var item = window.localStorage.getItem(flagStorage);
 	$('select[name=user_flag]').val(item);
 	$('select[name=user_flag]').change(function() {