diff --git a/controllers/prototype/views/prototype_recommendation.jade b/controllers/prototype/views/prototype_recommendation.jade
index 06544a5..ea9f4c7 100644
--- a/controllers/prototype/views/prototype_recommendation.jade
+++ b/controllers/prototype/views/prototype_recommendation.jade
@@ -10,7 +10,7 @@ block configjs
             $('#next').show();
             $('#next').click(function() {
                 window.location = '/prototype/game';
-                $('#next').unbind('click');
+                $('#next').prop('disabled', true);
             });
         };
 
diff --git a/js/l3d/apps/prototype/interactive/main.js b/js/l3d/apps/prototype/interactive/main.js
index c3d3bda..231fb3c 100644
--- a/js/l3d/apps/prototype/interactive/main.js
+++ b/js/l3d/apps/prototype/interactive/main.js
@@ -33,6 +33,7 @@ Coin.onCoinGot = function(coin) {
             $('#next').show();
             $('#next').click(function() {
                 window.location = '/prototype/next';
+                $('#next').prop('disabled', true);
             });
         }, 60*1000);
     }