diff --git a/index.html b/index.html
index 8723ba6d88..3acf4cb3ae 100644
--- a/index.html
+++ b/index.html
@@ -91,7 +91,7 @@
 			
 			<p>
 				<ul class="piramid_bullets">
-					<li><a class="fancybox fancybox.iframe" href="https://www.youtube.com/v/PXw5vVf2n8g?autoplay=1&hd=">Quick introduction video</a></li>
+					<li><a class="fancybox fancybox.iframe" href="https://www.youtube.com/v/PXw5vVf2n8g?autoplay=1&hd=1">Quick introduction video</a></li>
 					<li><a href="http://mayan.readthedocs.org">Online documentation</a></li>
 					<li><a href="https://plus.google.com/b/108413286958999778262/">Google plus page</a></li>
 				</ul>