diff --git a/app/templates/error/413.html b/app/templates/error/413.html
index 4dfddc603..e82a75b72 100644
--- a/app/templates/error/413.html
+++ b/app/templates/error/413.html
@@ -1,5 +1,5 @@
 {% extends "withoutnav_template.html" %}
-{% block per_page_title %}File too big{% endblock %}
+{% block per_page_title %}File too big – GOV.UK Notify{% endblock %}
 {% block maincolumn_content %}
     <div class="grid-row">
       <div class="column-two-thirds">