diff --git a/oauth3.core.js b/oauth3.core.js
index e210c0a..5d65c93 100644
--- a/oauth3.core.js
+++ b/oauth3.core.js
@@ -307,6 +307,8 @@
 
         var params = {
           state: opts.state || OAUTH3.utils.randomState()
+        , client_uri: clientId
+        , client_id: clientId
         , redirect_uri: clientId + (opts.client_callback_path || '/.well-known/oauth3/callback.html#/')
         , response_type: 'rpc'
         , _method: 'GET'