diff --git a/addons/website_event/__openerp__.py b/addons/website_event/__openerp__.py
index e13c8889a6c..41e59f41f0d 100644
--- a/addons/website_event/__openerp__.py
+++ b/addons/website_event/__openerp__.py
@@ -30,7 +30,7 @@ Online Events
 
         """,
     'author': 'OpenERP SA',
-    'depends': ['website', 'event_sale', 'website_sale'],
+    'depends': ['website', 'website_mail', 'event_sale', 'website_sale'],
     'data': [
         'event_data.xml',
         'views/website_event.xml',