diff --git a/material/404.html b/material/404.html
index 49c7d1648..ae765c44c 100644
--- a/material/404.html
+++ b/material/404.html
@@ -1,7 +1,7 @@
 {#-
   This file was automatically generated - do not edit
 -#}
-{% extends "base.html" %}
+{% extends "main.html" %}
 {% block content %}
   <h1>404 - Not found</h1>
 {% endblock %}
diff --git a/src/404.html b/src/404.html
index 3ffece839..903f98e5a 100644
--- a/src/404.html
+++ b/src/404.html
@@ -20,7 +20,7 @@
   IN THE SOFTWARE.
 -->
 
-{% extends "base.html" %}
+{% extends "main.html" %}
 
 <!-- Content block -->
 {% block content %}