diff --git a/blog/index.html b/blog/index.html
index c5cc22af..0db29138 100644
--- a/blog/index.html
+++ b/blog/index.html
@@ -20,7 +20,7 @@ title: titles.allposts
                             {% t blog.author %} {{ post.author }} | {{ post.date | date: "%-d %B %Y" }}<br>
                             Category:
                             {% for tag in post.tags %}
-                            <a href="/blog/tags/{{ tag }}.html">{{ tag }}</a>
+                            <a href="/blog/tags/{{ tag }}.html">{{ tag }}</a>{% unless forloop.last %},{% endunless %}
                             {% endfor %}
                             </small>
                         </p>