diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 1525105cc..ad5797173 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1499,15 +1499,15 @@ module ApplicationHelper
 
   def render_dynamic_nav
     home_link = link_to l(:field_homepage), {:controller => 'welcome', :action => 'index'}
-    course_all_course_link = link_to l(:label_course_all), {:controller => 'projects', :action => 'course', :project_type => 1, :subdomain => Setting.course_domain}
-    course_teacher_all_link = link_to l(:label_teacher_all), {:controller => 'users', :action => 'index', :role => 'teacher', :subdomain => Setting.course_domain}
-    courses_link = link_to l(:label_course_practice), {:controller => 'projects', :action => 'course', :project_type => 1, :subdomain => Setting.course_domain}
-    projects_link = link_to l(:label_project_deposit), {:controller => 'projects', :action => 'index', :project_type => 0, :subdomain => Setting.project_domain}
-    users_link = link_to l(:label_software_user), {:controller => 'users', :action => 'index', :subdomain => Setting.user_domain}
-    contest_link = link_to l(:label_contest_innovate), {:controller => 'bids', :action => 'contest', :project_type => 1 , :subdomain => Setting.project_domain}
+    course_all_course_link = link_to l(:label_course_all), {:controller => 'projects', :action => 'course', :project_type => 1, :host => Setting.course_domain}
+    course_teacher_all_link = link_to l(:label_teacher_all), {:controller => 'users', :action => 'index', :role => 'teacher', :host => Setting.course_domain}
+    courses_link = link_to l(:label_course_practice), {:controller => 'projects', :action => 'course', :project_type => 1, :host => Setting.course_domain}
+    projects_link = link_to l(:label_project_deposit), {:controller => 'projects', :action => 'index', :project_type => 0, :host => Setting.project_domain}
+    users_link = link_to l(:label_software_user), {:controller => 'users', :action => 'index', :host => Setting.user_domain}
+    contest_link = link_to l(:label_contest_innovate), {:controller => 'bids', :action => 'contest', :project_type => 1 , :host => Setting.project_domain}
     bids_link = link_to l(:label_requirement_enterprise), {:controller => 'bids', :action => 'index'}
     forum_link = link_to l(:label_project_module_forums), {:controller => "forums", :action => "index"}
-    stores_link = link_to l(:label_stores_index), {:controller => 'stores', :action=> 'index', :subdomain => Setting.course_domain}
+    stores_link = link_to l(:label_stores_index), {:controller => 'stores', :action=> 'index', :host => Setting.course_domain}
 
     #@nav_dispaly_project_label
     nav_list = Array.new