diff --git a/nummi/transaction/templates/transaction/transaction_archive_month.html b/nummi/transaction/templates/transaction/transaction_archive_month.html
index 7c6b8a6..e6a2600 100644
--- a/nummi/transaction/templates/transaction/transaction_archive_month.html
+++ b/nummi/transaction/templates/transaction/transaction_archive_month.html
@@ -7,8 +7,10 @@
 {% block h2 %}{{ month|date:"F Y"|capfirst }}{% endblock %}
 {% block table %}
     {% if not category %}
-        <h3>{% translate "Categories" %}</h3>
-        {% category_plot transactions month=month %}
+        <section>
+            <h3>{% translate "Categories" %}</h3>
+            {% category_plot transactions month=month %}
+        </section>
     {% endif %}
     <section>
         <h3>{% translate "Transactions" %}</h3>