diff --git a/lib/spree_print_invoice/engine.rb b/lib/spree_print_invoice/engine.rb
index a3f83c80..d2f23e25 100644
--- a/lib/spree_print_invoice/engine.rb
+++ b/lib/spree_print_invoice/engine.rb
@@ -16,7 +16,7 @@ class Engine < Rails::Engine
 
     class << self
       def activate
-        cache_klasses = %W(#{config.root}/app/**/*_decorator*.rb #{config.root}/app/overrides/*.rb)
+        cache_klasses = %W(#{config.root}/app/**/*_decorator*.rb)
         Dir.glob(cache_klasses) do |klass|
           Rails.configuration.cache_classes ? require(klass) : load(klass)
         end