diff --git a/addons/document_caldav/__terp__.py b/addons/document_caldav/__terp__.py
index b8b586742b0..9bc22884fee 100644
--- a/addons/document_caldav/__terp__.py
+++ b/addons/document_caldav/__terp__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 ##############################################################################
-#    
+#
 #    OpenERP, Open Source Management Solution
 #    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
 #
@@ -15,7 +15,7 @@
 #    GNU Affero General Public License for more details.
 #
 #    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.     
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
 
@@ -33,6 +33,5 @@
     'demo_xml': ['document_demo.xml'],
     'installable': True,
     'active': False,
-    'certificate': False,
 }
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: