diff --git a/website/scripts/sections.js b/website/scripts/sections.js
index c109d2a68f5b55c67d863d89625083f3557609f3..3d056a2362800a06dd8a60e48133ef24156ae813 100644
--- a/website/scripts/sections.js
+++ b/website/scripts/sections.js
@@ -73,7 +73,7 @@ function Section(parentSection, id, name) {
     this.toHTML = function(options) {
         var defaultOptions = {header: false, renderSubsections: true};
 
-        if (typeof options === undefined) {
+        if (typeof options === "undefined") {
             options = defaultOptions;
         } else {
             options = $.extend(defaultOptions, options);