diff --git a/app_odoo_customize/models/base_language_install.py b/app_odoo_customize/models/base_language_install.py
index 79549656..727dd549 100644
--- a/app_odoo_customize/models/base_language_install.py
+++ b/app_odoo_customize/models/base_language_install.py
@@ -2,7 +2,7 @@
 # Copyright 2017 Jarvis (www.odoomod.com)
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
 
-from odoo import api, fields, models, _
+from openerp import api, fields, models, _
 
 
 class BaseLanguageInstall(models.TransientModel):
diff --git a/app_odoo_customize/models/mail_thread.py b/app_odoo_customize/models/mail_thread.py
index cf1e7a0a..ec59b6e6 100644
--- a/app_odoo_customize/models/mail_thread.py
+++ b/app_odoo_customize/models/mail_thread.py
@@ -2,7 +2,7 @@
 # Copyright 2017 Jarvis (www.odoomod.com)
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
 
-from odoo import api, fields, models, _
+from openerp import api, fields, models, _
 
 
 class MailThread(models.AbstractModel):
diff --git a/app_odoo_customize/views/app_odoo_customize_view.xml b/app_odoo_customize/views/app_odoo_customize_view.xml
index 11ce3092..d9bb42a9 100644
--- a/app_odoo_customize/views/app_odoo_customize_view.xml
+++ b/app_odoo_customize/views/app_odoo_customize_view.xml
@@ -9,7 +9,7 @@
                 <script type="text/javascript" src="/app_odoo_customize/static/src/js/app_window_title.js"/>
             </xpath>
         </template>
-
+        <!-- some odoo version not support, please remove this if you are using odoo9 -->
         <template id="replace_login" name="replace_login" inherit_id="web.login_layout">
             <xpath expr="//a[@href='https://www.odoo.com']" position="replace">
                 <a href="https://www.sunpop.cn" target="_blank">Powered by <span>odooApp</span></a>