<div id="themes-list">
<ul>
{% for theme in themes %}
- <li><a href="{% url book_fragments book.urlid theme.slug %}">{{ theme }} ({{ theme.count }})</a></li>
+ <li><a href="{% url book_fragments book.slug theme.slug %}">{{ theme }} ({{ theme.count }})</a></li>
{% endfor %}
</ul>
</div>