diff --git a/app/models/application_model.rb b/app/models/application_model.rb
index 41736ea18..ec512c4a1 100644
--- a/app/models/application_model.rb
+++ b/app/models/application_model.rb
@@ -44,7 +44,7 @@ class ApplicationModel < ActiveRecord::Base
   @@import_class_list = ['Ticket', 'Ticket::Article', 'History', 'Ticket::State', 'Ticket::StateType', 'Ticket::Priority', 'Group', 'User', 'Role' ]
 
   def check_attributes_protected
-    if ( !Setting.get('system_init_done') || Setting.get('import_mode')) && @@import_class_list.include?( self.class.to_s )
+    if !Setting.get('system_init_done') || ( Setting.get('import_mode') && @@import_class_list.include?( self.class.to_s ) )
       # do noting, use id as it is
     else
       self[:id] = nil