diff --git a/app/models/dmsf_workflow_step.rb b/app/models/dmsf_workflow_step.rb
index 8b5908aa..0374ac5b 100644
--- a/app/models/dmsf_workflow_step.rb
+++ b/app/models/dmsf_workflow_step.rb
@@ -1,6 +1,8 @@
+# encoding: utf-8
+#
 # Redmine plugin for Document Management System "Features"
 #
-# Copyright (C) 2011-14 Karel Picman <karel.picman@kontron.com>
+# Copyright (C) 2011-15 Karel Pičman <karel.picman@kontron.com>
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -25,6 +27,8 @@ class DmsfWorkflowStep < ActiveRecord::Base
   validates :operator, :presence => true
   validates_uniqueness_of :user_id, :scope => [:dmsf_workflow_id, :step]
   
+  attr_accessible :dmsf_workflow_id, :step, :user_id, :operator
+  
   OPERATOR_OR  = 0
   OPERATOR_AND = 1