diff --git a/_layouts/base.html b/_layouts/base.html
index ddf626f..eca4d67 100644
--- a/_layouts/base.html
+++ b/_layouts/base.html
@@ -2,7 +2,7 @@
 layout: default
 ---
 
-<div class="layout-threecol">
+<div class="layout layout-threecol">
     <div class="layout-threecol-center">
         <h1>
             {{ site.title }}