diff --git a/theme/templates/partial/toctree.html b/theme/templates/partial/toctree.html
index a516fab..4a5faa7 100644
--- a/theme/templates/partial/toctree.html
+++ b/theme/templates/partial/toctree.html
@@ -1,7 +1,7 @@
 <ul class="toctree">
     {% for cat, articles in categories|sort %}
-    {% if article and article.category == cat %}
-    <li class="toctree-l1 current"><a href="{{ SITEURL }}/{{ cat.url }}">{{ cat | capitalize }}</a>
+    {% if (article and article.category == cat) or category == cat %}
+    <li class="toctree-l1 current"><a href="{{ SITEURL }}/{{ cat.url }}">{{ cat | upper }}</a>
         <ul>
         {% for art in articles | sort(attribute="date") %}
         {% if article == art %}
@@ -13,7 +13,7 @@
         </ul>
     </li>
     {% else %}
-    <li class="toctree-l1"><a href="{{ SITEURL }}/{{ cat.url }}">{{ cat | capitalize }}</a>
+    <li class="toctree-l1"><a href="{{ SITEURL }}/{{ cat.url }}">{{ cat | upper }}</a>
     {% endif %}
     {% endfor %}
 </ul>