diff --git a/app/controllers/oauth2_controller.rb b/app/controllers/oauth2_controller.rb
index 1e14e88b0..11ebe587a 100644
--- a/app/controllers/oauth2_controller.rb
+++ b/app/controllers/oauth2_controller.rb
@@ -7,7 +7,7 @@ class Oauth2Controller < ApplicationController
     @call_url = request.fullpath.split('call_url=').last
     @app = Doorkeeper::Application.find_by(uid: client_id)
     if User.current.logged?
-      redirect_to @call_url + "&auth=" + @user.login
+      redirect_to @call_url + "&auth=" + User.current.login
     end
   end