diff --git a/assets/js/script.js b/assets/js/script.js
index 79e87f2..7316daf 100644
--- a/assets/js/script.js
+++ b/assets/js/script.js
@@ -130,7 +130,9 @@
 
   // table of contents
   $('h2, h3, h4', '.content').each(function () {
-    $(this).append('<a class="title-link" href="#' + $(this).attr('id') + '">#</a>');
+    if ($('#TableOfContents', '.content').length) {
+      $(this).append('<a class="title-link" href="#' + $(this).attr('id') + '">#</a>');
+    }
   });