diff --git a/addons/website_event/controllers/main.py b/addons/website_event/controllers/main.py
index 3c36524dbb1..8afc69a20ba 100644
--- a/addons/website_event/controllers/main.py
+++ b/addons/website_event/controllers/main.py
@@ -194,8 +194,8 @@ class WebsiteEventController(http.Controller):
     def get_formated_date(self, event):
         start_date = fields.Datetime.from_string(event.date_begin).date()
         end_date = fields.Datetime.from_string(event.date_end).date()
-        month = babel.dates.get_month_names('abbreviated', locale=self.env.context.get('lang', 'en_US'))[start_date.month]
-        return ('%s %s%s') % (month, start_date.strftime("%e"), (end_date != start_date and ("-"+end_date.strftime("%e")) or ""))
+        month = babel.dates.get_month_names('abbreviated', locale=event.env.context.get('lang', 'en_US'))[start_date.month]
+        return ('%s %s%s') % (month, start_date.strftime("%e"), (end_date != start_date and ("-" + end_date.strftime("%e")) or ""))
 
     @http.route('/event/get_country_event_list', type='http', auth='public', website=True)
     def get_country_events(self, **post):