diff --git a/jsfiddles/example_app/demo.js b/jsfiddles/example_app/demo.js
index ad79fcca..13c9c2b3 100644
--- a/jsfiddles/example_app/demo.js
+++ b/jsfiddles/example_app/demo.js
@@ -110,7 +110,7 @@ $('.register').live('click', function() {
         url: "http://localhost:8008/_matrix/client/api/v1/register",
         type: "POST",
         contentType: "application/json; charset=utf-8",
-        data: JSON.stringify({ user_id: user, password: password }),
+        data: JSON.stringify({ user: user, password: password, type: "m.login.password" }),
         dataType: "json",
         success: function(data) {
             onLoggedIn(data);
diff --git a/jsfiddles/register_login/demo.js b/jsfiddles/register_login/demo.js
index fffa9e05..2e6957b6 100644
--- a/jsfiddles/register_login/demo.js
+++ b/jsfiddles/register_login/demo.js
@@ -14,7 +14,7 @@ $('.register').live('click', function() {
         url: "http://localhost:8008/_matrix/client/api/v1/register",
         type: "POST",
         contentType: "application/json; charset=utf-8",
-        data: JSON.stringify({ user_id: user, password: password }),
+        data: JSON.stringify({ user: user, password: password, type: "m.login.password" }),
         dataType: "json",
         success: function(data) {
             showLoggedIn(data);