diff --git a/config/application.rb b/config/application.rb
index 7c530e69..f1bf8365 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -38,6 +38,7 @@ module Sutty
 
     config.active_storage.variant_processor = :vips
 
+    config.to_prepare do
       # Load application's model / class decorators
       Dir.glob(File.join(File.dirname(__FILE__), '..', 'app', '**', '*_decorator.rb')).sort.each do |c|
         Rails.configuration.cache_classes ? require(c) : load(c)