diff --git a/templates/themes/ukko/ukko.js b/templates/themes/ukko/ukko.js
index 4a36b394..490f67f0 100644
--- a/templates/themes/ukko/ukko.js
+++ b/templates/themes/ukko/ukko.js
@@ -4,7 +4,8 @@ var cache = new Array(),
 	thread = false,
 	loading = false,
 	ukkotimer = false;
-if (localStorage.hiddenboards !== null) {
+
+if (localStorage.hiddenboards === undefined) {
 	localStorage.hiddenboards = "{}";
 }