diff --git a/test/test.html b/test/test.html
index 40a6d98..8a978da 100644
--- a/test/test.html
+++ b/test/test.html
@@ -13,7 +13,7 @@
 </head>
 <body>
   <h5>This is test page</h5>
-  <button onclick="displayInfo()">Test Button</button>
+  <button type="button" onclick="displayInfo()">Test Button</button>
   <div id="output"></div>
   <script>
     function displayInfo() {
