diff --git a/lib/ad_banner/engine.rb b/lib/ad_banner/engine.rb
index 29ea0dc..270b8ea 100644
--- a/lib/ad_banner/engine.rb
+++ b/lib/ad_banner/engine.rb
@@ -1,35 +1,37 @@
 module AdBanner
   class Engine < ::Rails::Engine
     initializer "ad_banner" do 
-      OrbitApp.registration "AdBanner", :type => "ModuleApp" do
-        module_label "ad_banner.ad_banner"
-        base_url File.expand_path File.dirname(__FILE__)
-        widget_methods ["widget"]
-        widget_settings [{"override_category_with"=>"banner","multiselect"=>false,"display_field"=>"title","enable_custom_widget_data"=>true}]
-        # models_to_cache [:banner,:ad_image]
-        taggable "Banner"
-        categorizable
-        authorizable
+      Rails.application.config.to_prepare do
+        OrbitApp.registration "AdBanner", :type => "ModuleApp" do
+          module_label "ad_banner.ad_banner"
+          base_url File.expand_path File.dirname(__FILE__)
+          widget_methods ["widget"]
+          widget_settings [{"override_category_with"=>"banner","multiselect"=>false,"display_field"=>"title","enable_custom_widget_data"=>true}]
+          # models_to_cache [:banner,:ad_image]
+          taggable "Banner"
+          categorizable
+          authorizable
 
-        side_bar do
-          head_label_i18n 'ad_banner.ad_banner', icon_class: "icons-landscape"
-          available_for "users"
-          active_for_controllers (['admin/ad_banners','admin/ad_images'])
-          head_link_path "admin_ad_banners_path"
+          side_bar do
+            head_label_i18n 'ad_banner.ad_banner', icon_class: "icons-landscape"
+            available_for "users"
+            active_for_controllers (['admin/ad_banners','admin/ad_images'])
+            head_link_path "admin_ad_banners_path"
 
-          context_link 'ad_banner.all',
-            :link_path=>"admin_ad_banners_path" ,
-            :priority=>1,
-            :active_for_action=>{'admin/ad_banners'=>"index"},
-            :available_for => 'users'
+            context_link 'ad_banner.all',
+              :link_path=>"admin_ad_banners_path" ,
+              :priority=>1,
+              :active_for_action=>{'admin/ad_banners'=>"index"},
+              :available_for => 'users'
 
-          context_link 'categories',
-            :link_path=>"admin_module_app_categories_path" ,
-            :link_arg=>"{:module_app_id=>ModuleApp.find_by(:key=>'ad_banner').id}",
-            :priority=>3,
-            :active_for_action=>{'admin/ad_banners'=>'categories'},
-            :active_for_category => 'AdBanner',
-            :available_for => 'managers'
+            context_link 'categories',
+              :link_path=>"admin_module_app_categories_path" ,
+              :link_arg=>"{:module_app_id=>ModuleApp.find_by(:key=>'ad_banner').id}",
+              :priority=>3,
+              :active_for_action=>{'admin/ad_banners'=>'categories'},
+              :active_for_category => 'AdBanner',
+              :available_for => 'managers'
+          end
         end
       end
     end