<div class="summary-cover-area">
<p><img id="summary-cover" class="book-cover"
{% if revision %}
- src="{% url cover_preview chunk.book.slug chunk.slug revision %}"
+ src="{% url 'cover_preview' chunk.book.slug chunk.slug revision %}"
{% else %}
- src="{% url cover_preview chunk.book.slug chunk.slug %}"
+ src="{% url 'cover_preview' chunk.book.slug chunk.slug %}"
{% endif %}></p>
<p><button id="summary-cover-refresh">{% trans "Refresh from working copy" %}</button></p>
</div>