diff --git a/app/controllers/oauth_callback_controller.rb b/app/controllers/oauth_callback_controller.rb
index e9c327109..d2273b932 100644
--- a/app/controllers/oauth_callback_controller.rb
+++ b/app/controllers/oauth_callback_controller.rb
@@ -82,7 +82,7 @@ class OauthCallbackController < ApplicationController
   end
 
   def account_from_signed_id
-    raise 'Missing state variable' if params[:state].blank?
+    raise ActionController::BadRequest, 'Missing state variable' if params[:state].blank?
 
     GlobalID::Locator.locate_signed(params[:state])
   end