diff --git a/lib/report_generator/rails.rb b/lib/report_generator/rails.rb
index a467d58..af1f3a8 100644
--- a/lib/report_generator/rails.rb
+++ b/lib/report_generator/rails.rb
@@ -13,6 +13,8 @@ class Engine < Rails::Engine
 
     # Based on https://github.com/rails/webpacker/blob/v3.6.0/lib/webpacker/railtie.rb#L57-L65
     initializer 'report_generator.helper' do
+      require_relative '../../app/helpers/report_generator/helper'
+
       ActiveSupport.on_load :action_controller do
         ActionController::Base.helper ReportGenerator::Helper
       end