diff --git a/document_url/README.rst b/document_url/README.rst
index 9f97ed99..5a6f6803 100644
--- a/document_url/README.rst
+++ b/document_url/README.rst
@@ -31,7 +31,7 @@ Bug Tracker
 Bugs are tracked on `GitHub Issues <https://github.com/OCA/knowledge/issues>`_.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed feedback
-`here <https://github.com/OCA/knowledge/issues/new?body=module:%20document_url%0Aversion:%209.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+`here <https://github.com/OCA/knowledge/issues/new?body=module:%20document_url%0Aversion:%2010.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
 
 Credits
 =======
diff --git a/document_url/static/src/js/url.js b/document_url/static/src/js/url.js
index c5ee7358..595a6e7d 100644
--- a/document_url/static/src/js/url.js
+++ b/document_url/static/src/js/url.js
@@ -1,3 +1,8 @@
+/* © 2014 Serv. Tecnol. Avanzados (http://www.serviciosbaeza.com)
+ *                      Pedro M. Baeza <pedro.baeza@serviciosbaeza.com>
+ * © 2016 ACSONE SA/NV (<http://acsone.eu>)
+ * License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+ */
 odoo.define('document_url', function(require) {
     "use strict";
     var Sidebar = require('web.Sidebar');
@@ -22,4 +27,4 @@ odoo.define('document_url', function(require) {
             return result;
         },
     });
-});
\ No newline at end of file
+});
diff --git a/document_url/static/src/xml/url.xml b/document_url/static/src/xml/url.xml
index b76722d3..a8f73d91 100644
--- a/document_url/static/src/xml/url.xml
+++ b/document_url/static/src/xml/url.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <templates>
     <t t-extend="Sidebar">
         <!-- oe_ for Odoo CE, and o_ for Odoo EE -->
diff --git a/document_url/wizard/document_url.py b/document_url/wizard/document_url.py
index 5583fbaa..aa1431e2 100644
--- a/document_url/wizard/document_url.py
+++ b/document_url/wizard/document_url.py
@@ -2,7 +2,7 @@
 # © 2014 Serv. Tecnol. Avanzados (http://www.serviciosbaeza.com)
 #                       Pedro M. Baeza <pedro.baeza@serviciosbaeza.com>
 # © 2016 ACSONE SA/NV (<http://acsone.eu>)
-from odoo import models, fields, api
+from odoo import models, fields, api, _
 try:
     # Python 3
     from urllib import parse as urlparse
@@ -20,21 +20,20 @@ class AddUrlWizard(models.TransientModel):
     def action_add_url(self):
         """Adds the URL with the given name as an ir.attachment record."""
 
-        context = self.env.context
-        if not context['active_model']:
+        if not self._context.get('active_model'):
             return
         attachment_obj = self.env['ir.attachment']
         for form in self:
             url = urlparse(form.url)
             if not url.scheme:
                 url = urlparse('%s%s' % ('http://', form.url))
-            for active_id in context['active_ids', []]:
+            for active_id in self._context.get('active_ids', []):
                 attachment = {
                     'name': form.name,
                     'type': 'url',
                     'url': url.geturl(),
                     'res_id': active_id,
-                    'res_model': context['active_model']
+                    'res_model': self._context.get('active_model')
                 }
                 attachment_obj.create(attachment)
         return False