diff --git a/ex.html b/ex.html
index 92452a1..f751c3e 100644
--- a/ex.html
+++ b/ex.html
@@ -3,7 +3,7 @@
 <head>
 <meta charset="utf-8">
 <title>yaa</title>
-<script type="text/javascript" src="idb2-sample.js" charset="utf-8"></script>
+<script type="text/javascript" src="ex.js" charset="utf-8"></script>
 </head>
 
 <h1>onloadで呼ぶ実験</h1>
