diff --git a/source/_layouts/talk.twig b/source/_layouts/talk.twig
index 5eeb957f..bac5d931 100644
--- a/source/_layouts/talk.twig
+++ b/source/_layouts/talk.twig
@@ -3,7 +3,7 @@
 {% block body_classes 'page--talks page--talks__talk' %}
 
 {% block content_wrapper %}
-    <main class="col-md-10">
+    <main class="col-md-9">
         <h1>{{ page.title }}</h1>
 
         <p>At {{ page.location }} on {{ page.date|date(site.default_date_format) }}.</p>