diff --git a/index.html b/index.html
index ce699d6..ee12a6f 100644
--- a/index.html
+++ b/index.html
@@ -190,7 +190,7 @@
 	<hr>
 	<center><h1>Talk</h1></center>
 	<p align="center">
-		<iframe width="800" height="600" src=".src/resources/teaser" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen align="center"></iframe>
+		<iframe width="800" height="600" src=".src/resources/teaser.mp4" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen align="center"></iframe>
 	</p>
 
 	<table align=center width=800px>