diff --git a/app/controllers/account_controller.rb b/app/controllers/account_controller.rb
index dc1cceb87..181f76b22 100644
--- a/app/controllers/account_controller.rb
+++ b/app/controllers/account_controller.rb
@@ -336,9 +336,11 @@ class AccountController < ApplicationController
       :expires => 1.month.from_now,
       :path => (Redmine::Configuration['autologin_cookie_path'] || '/'),
       :secure => (Redmine::Configuration['autologin_cookie_secure'] ? true : false),
-      :domain => Redmine::Configuration['cookie_domain'],
       :httponly => true
     }
+    if Redmine::Configuration['cookie_domain'].present?
+      cookie_options = cookie_options.merge(domain: Redmine::Configuration['cookie_domain'])
+    end
     cookies[autologin_cookie_name] = cookie_options
   end
 
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 88cd51d67..10e5e6f06 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -199,7 +199,11 @@ class ApplicationController < ActionController::Base
   # Logs out current user
   def logout_user
     if User.current.logged?
-      cookies.delete(autologin_cookie_name, domain: :all)
+      if Redmine::Configuration['cookie_domain'].present?
+        cookies.delete(autologin_cookie_name, domain: Redmine::Configuration['cookie_domain'])
+      else
+        cookies.delete autologin_cookie_name
+      end
       # Token.delete_all(["user_id = ? AND action = ?", User.current.id, 'autologin'])
       self.logged_user = nil
     end
diff --git a/config/configuration.yml b/config/configuration.yml
index 45e307157..390754a87 100644
--- a/config/configuration.yml
+++ b/config/configuration.yml
@@ -90,7 +90,6 @@ default:
       user_name: "huang.jingquan@163.com"
       password: 'xinhu1ji2qu366'
 
-  cookie_domain: ".trustie.net"
   # Absolute path to the directory where attachments are stored.
   # The default is the 'files' directory in your Redmine instance.
   # Your Redmine instance needs to have write permission on this
@@ -104,7 +103,7 @@ default:
   # autologin_cookie_name: the name of the cookie (default: autologin)
   # autologin_cookie_path: the cookie path (default: /)
   # autologin_cookie_secure: true sets the cookie secure flag (default: false)
-  autologin_cookie_name:
+  autologin_cookie_name: "autologin_trustie"
   autologin_cookie_path:
   autologin_cookie_secure:
 
@@ -201,7 +200,7 @@ default:
 # specific configuration options for production environment
 # that overrides the default ones
 production:
-  # CJK support
+  cookie_domain: ".trustie.net"
   rmagick_font_path: /usr/share/fonts/ipa-mincho/ipam.ttf
   email_delivery:
     delivery_method: :smtp