diff --git a/lib/vitals_image/engine.rb b/lib/vitals_image/engine.rb
index e410fa6..0be0773 100644
--- a/lib/vitals_image/engine.rb
+++ b/lib/vitals_image/engine.rb
@@ -86,10 +86,10 @@ class Engine < ::Rails::Engine
       end
     end
 
-    initializer "vitals_image.action_controller" do
-      ActiveSupport.on_load :action_controller do
-        helper VitalsImage::TagHelper
-      end
-    end
+    config.to_prepare do
+     ActiveSupport.on_load :action_controller do
+       helper VitalsImage::TagHelper
+     end
+   end
   end
 end