diff --git a/share/js/navigation.js b/share/js/navigation.js
index 9d71b52..4472092 100644
--- a/share/js/navigation.js
+++ b/share/js/navigation.js
@@ -76,7 +76,8 @@ function Navigation(modules) {
 
 	function articleIds(tag, all) {
 		var ids = tag != undefined ? blog.tags[tag] : Object.keys(blog.articles);
-		ids.sort(function(idA, idB) {return blog.articles[idB].date - blog.articles[idA].date;});
+		var reverseDate = function (id) {return -blog.articles[id].metadata.date;};
+		ids.sort(modules.fun.compare(reverseDate));
 		return ids.slice(0, all ? undefined : blog.skin.previewArticlesCount);
 	}