diff --git a/addons/calendar/calendar.py b/addons/calendar/calendar.py
index cead6d230a9..00c82af60db 100644
--- a/addons/calendar/calendar.py
+++ b/addons/calendar/calendar.py
@@ -825,6 +825,11 @@ class calendar_event(osv.Model):
                     meeting_data[field] = meeting.stop_date if meeting.allday else meeting.stop_datetime
         return res
 
+    def _get_recurrent_fields(self, cr, uid, context=None):
+        return ['byday', 'recurrency', 'final_date', 'rrule_type', 'month_by',
+                'interval', 'count', 'end_type', 'mo', 'tu', 'we', 'th', 'fr', 'sa',
+                'su', 'day', 'week_list']
+
     def _get_rulestring(self, cr, uid, ids, name, arg, context=None):
         """
         Gets Recurrence rule string according to value type RECUR of iCalendar from the values given.
@@ -835,10 +840,8 @@ class calendar_event(osv.Model):
             ids = [ids]
 
         #read these fields as SUPERUSER because if the record is private a normal search could raise an error
-        events = self.read(cr, SUPERUSER_ID, ids,
-                           ['id', 'byday', 'recurrency', 'final_date', 'rrule_type', 'month_by',
-                            'interval', 'count', 'end_type', 'mo', 'tu', 'we', 'th', 'fr', 'sa',
-                            'su', 'day', 'week_list'], context=context)
+        recurrent_fields = self._get_recurrent_fields(cr, uid, context=context)
+        events = self.read(cr, SUPERUSER_ID, ids, recurrent_fields, context=context)
         for event in events:
             if event['recurrency']:
                 result[event['id']] = self.compute_rule_string(event)
diff --git a/addons/google_calendar/google_calendar.py b/addons/google_calendar/google_calendar.py
index e9debc8f1bb..8f990ea075e 100644
--- a/addons/google_calendar/google_calendar.py
+++ b/addons/google_calendar/google_calendar.py
@@ -989,9 +989,10 @@ class calendar_event(osv.Model):
     _inherit = "calendar.event"
 
     def get_fields_need_update_google(self, cr, uid, context=None):
-        return ['name', 'description', 'allday', 'start', 'date_end', 'stop',
-                'attendee_ids', 'alarm_ids', 'location', 'class', 'active',
-                'start_date', 'start_datetime', 'stop_date', 'stop_datetime']
+        recurrent_fields = self._get_recurrent_fields(cr, uid, context=context)
+        return recurrent_fields + ['name', 'description', 'allday', 'start', 'date_end', 'stop',
+                                   'attendee_ids', 'alarm_ids', 'location', 'class', 'active',
+                                   'start_date', 'start_datetime', 'stop_date', 'stop_datetime']
 
     def write(self, cr, uid, ids, vals, context=None):
         if context is None: