diff --git a/.themes/classic/source/_includes/custom/header.html b/.themes/classic/source/_includes/custom/header.html
new file mode 100644
index 0000000..35f9c05
--- /dev/null
+++ b/.themes/classic/source/_includes/custom/header.html
@@ -0,0 +1,6 @@
+<hgroup>
+  <h1><a href="{{ root_url }}/">{{ site.title }}</a></h1>
+  {% if site.subtitle %}
+    <h2>{{ site.subtitle }}</h2>
+  {% endif %}
+</hgroup>
diff --git a/.themes/classic/source/_includes/header.html b/.themes/classic/source/_includes/header.html
index 35f9c05..524de65 100644
--- a/.themes/classic/source/_includes/header.html
+++ b/.themes/classic/source/_includes/header.html
@@ -1,6 +1 @@
-<hgroup>
-  <h1><a href="{{ root_url }}/">{{ site.title }}</a></h1>
-  {% if site.subtitle %}
-    <h2>{{ site.subtitle }}</h2>
-  {% endif %}
-</hgroup>
+{% include custom/header.html %}