diff --git a/_layouts/default.html b/_layouts/default.html
index 31fdfb3..fd9fabf 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -28,7 +28,7 @@ <h1>Citation Networks in Classics</h1>
 	  <div id="content"class="span-12"><h2>{{ page.title }}</h2>
 		{{content}}
 	</div>
-	  <div id="ad"class="span-8 last"><h2>Right Sidebar</h2>
+	  <div id="ad"class="span-4 last"><h2>Right Sidebar</h2>
 	  <p>I'll fill it in later on.</p>
 
 	</div>