diff --git a/app/models/history.rb b/app/models/history.rb
index 578f1c457..aa16b9857 100644
--- a/app/models/history.rb
+++ b/app/models/history.rb
@@ -1,7 +1,7 @@
 # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
 class History < ApplicationModel
-  require 'history/assets'
+  load 'history/assets.rb'
   include History::Assets
 
   self.table_name = 'histories'
diff --git a/app/models/organization.rb b/app/models/organization.rb
index b15d33540..dcf58eb6e 100644
--- a/app/models/organization.rb
+++ b/app/models/organization.rb
@@ -1,7 +1,7 @@
 # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
 class Organization < ApplicationModel
-  require 'organization/assets'
+  load 'organization/assets.rb'
   include Organization::Assets
   extend Organization::Search
   include Organization::SearchIndex
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 58178f0df..01bbdc853 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -4,13 +4,13 @@ class Ticket < ApplicationModel
   include Ticket::Escalation
   include Ticket::Subject
   include Ticket::Permission
-  require 'ticket/assets'
+  load 'ticket/assets.rb'
   include Ticket::Assets
-  require 'ticket/history_log'
+  load 'ticket/history_log.rb'
   include Ticket::HistoryLog
-  require 'ticket/activity_stream_log'
+  load 'ticket/activity_stream_log.rb'
   include Ticket::ActivityStreamLog
-  require 'ticket/search_index'
+  load 'ticket/search_index.rb'
   include Ticket::SearchIndex
   extend Ticket::Search
 
diff --git a/app/models/ticket/article.rb b/app/models/ticket/article.rb
index 83180c460..ee55a33d6 100644
--- a/app/models/ticket/article.rb
+++ b/app/models/ticket/article.rb
@@ -1,11 +1,11 @@
 # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
 class Ticket::Article < ApplicationModel
-  require 'ticket/article/assets'
+  load 'ticket/article/assets.rb'
   include Ticket::Article::Assets
-  require 'ticket/article/history_log'
+  load 'ticket/article/history_log.rb'
   include Ticket::Article::HistoryLog
-  require 'ticket/article/activity_stream_log'
+  load 'ticket/article/activity_stream_log.rb'
   include Ticket::Article::ActivityStreamLog
 
   belongs_to    :ticket
diff --git a/app/models/user.rb b/app/models/user.rb
index 2fe4086f8..ce89b4782 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -3,7 +3,7 @@
 require 'digest/md5'
 
 class User < ApplicationModel
-  require 'user/assets'
+  load 'user/assets.rb'
   include User::Assets
   extend User::Search
   include User::SearchIndex