diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 28e6380f..8045201d 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "ostruct"
-
 class ApplicationController < ActionController::Base
   include Pagy::Backend
   include SessionsHelper
@@ -36,7 +34,7 @@ class ApplicationController < ActionController::Base
 
   rescue_from ActiveRecord::RecordNotFound do |error|
     respond_to do |format|
-      format.json { render_json_error(OpenStruct.new(type: "RecordNotFound", message: error.message), :not_found) }
+      format.json { render_json_error(BlackCandy::CustomError.new("RecordNotFound", error.message), :not_found) }
       format.html { render template: "errors/not_found", layout: "plain", status: :not_found }
     end
   end
diff --git a/lib/black_candy/errors.rb b/lib/black_candy/errors.rb
index 0038283a..988eb5d7 100644
--- a/lib/black_candy/errors.rb
+++ b/lib/black_candy/errors.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 module BlackCandy
+  CustomError = Data.define(:type, :message)
+
   class BaseError < StandardError
     def type
       self.class.name.split("::").last