diff --git a/html5/verto/demo/verto.js b/html5/verto/demo/verto.js
index c6361f5f7c..c8ae2faf3b 100644
--- a/html5/verto/demo/verto.js
+++ b/html5/verto/demo/verto.js
@@ -448,7 +448,7 @@ function init() {
         });
     });
 
-    tmp = $.cookie("verto_demo_stun_checked") || "false";
+    tmp = $.cookie("verto_demo_stun_checked") || "true";
     $.cookie("verto_demo_stun_checked", tmp, {
         expires: 365
     });