diff --git a/lib/announcement/engine.rb b/lib/announcement/engine.rb
index d20c2d4..cc29c44 100644
--- a/lib/announcement/engine.rb
+++ b/lib/announcement/engine.rb
@@ -29,14 +29,14 @@ module Announcement
                                 :available_for => [:sub_manager]
           context_link 'categories',
                                 :link_path=>"admin_module_app_categories_path" ,
-                                :link_arg=>{:module_app_id=>get_module_app.id},
+                                :link_arg=>"{:module_app_id=>ModuleApp.find_by(:key=>'announcement').id}",
                                 :priority=>3,
                                 :active_for_action=>{'admin/announcements'=>'categories'},
                                 :active_for_category => 'Announcement',
                                 :available_for => [:manager]
           context_link 'tags',
                                 :link_path=>"admin_module_app_tags_path" ,
-                                :link_arg=>{:module_app_id=>get_module_app.id},
+                                :link_arg=>"{:module_app_id=>ModuleApp.find_by(:key=>'announcement').id}",
                                 :priority=>4,
                                 :active_for_action=>{'admin/announcements'=>'tags'},
                                 :active_for_tag => 'Announcement',