diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 34d6d97..a750475 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -36,7 +36,9 @@
 	{{ end }}
 	</div>
 	{{ partial "footer" . }}
+{{- with .Site.Menus.main }}
 <script src="{{ "js/menu.js" | relURL }}"></script>
+{{- end }}
 {{- partial "mathjax.html" . -}}
 </body>
 </html>
\ No newline at end of file
diff --git a/static/js/menu.js b/static/js/menu.js
index 47b64e3..852e4a9 100644
--- a/static/js/menu.js
+++ b/static/js/menu.js
@@ -10,6 +10,4 @@ function toggleMenu() {
 	);
 }
 
-if (toggle && menu) {
-	toggle.addEventListener('click', toggleMenu, false);
-}
+toggle.addEventListener('click', toggleMenu, false);