diff --git a/lib/src/client.dart b/lib/src/client.dart
index ec8dda5..62a06ca 100644
--- a/lib/src/client.dart
+++ b/lib/src/client.dart
@@ -109,7 +109,8 @@
       if (!params.containsKey('error')) return response;
 
       throw new AuthorizationException(
-          params['error'], params['error_description'], params['error_uri']);
+          params['error'], params['error_description'],
+          Uri.parse(params['error_uri']));
     });
   }