diff --git a/website/themes/ots/templates/category.html b/website/themes/ots/templates/category.html
index 245b052a0686aa5126e29a45b04cf491a41d9457..79d08f99972e729e87df3b000dcff76035847f37 100644
--- a/website/themes/ots/templates/category.html
+++ b/website/themes/ots/templates/category.html
@@ -1,4 +1,4 @@
-    {% extends "index.html" %}
+{% extends "index.html" %}
 
     {% block title %}{{ category }} — {{ SITENAME }}{% endblock %}
 
diff --git a/website/themes/ots/templates/index.html b/website/themes/ots/templates/index.html
index c9aa8ab6337b9564194369c65572b3cf27c5347d..2348033ececa2b9857d5c438b306673ec0ba78ce 100644
--- a/website/themes/ots/templates/index.html
+++ b/website/themes/ots/templates/index.html
@@ -1,12 +1,12 @@
-    {% extends "base.html" %}
+{% extends "base.html" %}
 
-    {% block content_title %}
-    {% if articles_page.number == 1 %}
-    {% include 'introduction.html' %}
-    {% endif %}
-    {% endblock %}
+{% block content_title %}
+{% if articles_page.number == 1 %}
+{% include 'introduction.html' %}
+{% endif %}
+{% endblock %}
 
-    {% block content %}
+{% block content %}
 
     <section id="listing">
       {% for article in articles_page.object_list %}
@@ -63,4 +63,4 @@
 
     </section>
 
-    {% endblock content %}
+{% endblock content %}