diff --git a/index-open.html b/index-open.html
index e581721..1ce92a3 100644
--- a/index-open.html
+++ b/index-open.html
@@ -1,7 +1,7 @@
<html>
<!-- classes were from SparrOS Developer Team -->
<title>DremJS</title>
- <embed src="mopen.wav" width="0" height="0" loop="false" autostart="true" hidden="true" />
+ <embed src="mopen.mp3" width="0" height="0" loop="false" autostart="true" hidden="true" />
<embed src="ambient.mp3" width="0" loop="true" autostart="true" hidden="true" />
<style>
.start {