diff --git a/test/_posts/2013-01-11-markup-html-tags-and-formatting.md b/test/_posts/2013-01-11-markup-html-tags-and-formatting.md
index f7d9437a..1fdc6dbd 100644
--- a/test/_posts/2013-01-11-markup-html-tags-and-formatting.md
+++ b/test/_posts/2013-01-11-markup-html-tags-and-formatting.md
@@ -11,6 +11,7 @@ tags:
   - html
   - markup
 toc: true
+toc_sticky: true
 ---
 
 A variety of common markup showing how the theme styles them.