diff --git a/oauth3.implicit.js b/oauth3.implicit.js
index 41dc490..a3cf522 100644
--- a/oauth3.implicit.js
+++ b/oauth3.implicit.js
@@ -339,6 +339,10 @@
         , client_id: opts.client_id || opts.client_uri
         , client_uri: opts.client_uri || opts.client_id
         , state: state
+        , redirect_uri: opts.redirect_uri = OAUTH3.utils.url.resolve(
+            OAUTH3.utils.url.normalize(opts.client_uri || opts.client_id)
+          , '.well-known/oauth3/callback.html'
+          )
         , debug: opts.debug
         };
         var uri = args.url;