diff --git a/boards/templates/boards/post.html b/boards/templates/boards/post.html
--- a/boards/templates/boards/post.html
+++ b/boards/templates/boards/post.html
@@ -61,7 +61,7 @@
         <span class="tags">
             {% for tag in post.thread_new.get_tags %}
                 <a class="tag" href="{% url 'tag' tag.name %}">
-                    #{{ tag.name }}</a>
+                    #{{ tag.name }}</a>{% if not forloop.last %},{% endif %}
             {% endfor %}
         </span>
     </div>