diff --git a/apps/HowTo/index.html b/apps/HowTo/index.html
index 94b2bf2..a9adbdc 100644
--- a/apps/HowTo/index.html
+++ b/apps/HowTo/index.html
@@ -12,7 +12,7 @@
         }
     </style>
     <body>
-    <embed src="ambient.wav" width="0" height="0" loop="true" autostart="true" hidden="true">
+    <embed src="ambient.mp3" width="0" height="0" loop="true" autostart="true" hidden="true">
         <h1>
             How to Install Applications onto DremJS
         </h1>
