diff --git a/addons/google_calendar/google_calendar.py b/addons/google_calendar/google_calendar.py
index b942400dcb5..5bb0fda4b1f 100644
--- a/addons/google_calendar/google_calendar.py
+++ b/addons/google_calendar/google_calendar.py
@@ -422,9 +422,10 @@ class google_calendar(osv.AbstractModel):
 
         if self.get_need_synchro_attendee(cr, uid, context=context):
             for google_attendee in single_event_dict.get('attendees', []):
+                partner_email = google_attendee.get('email', False)
                 if type == "write":
                     for oe_attendee in event['attendee_ids']:
-                        if oe_attendee.email == google_attendee['email']:
+                        if oe_attendee.email == partner_email:
                             calendar_attendee_obj.write(cr, uid, [oe_attendee.id], {'state': google_attendee['responseStatus'], 'google_internal_event_id': single_event_dict.get('id')}, context=context)
                             google_attendee['found'] = True
                             continue
@@ -432,12 +433,12 @@ class google_calendar(osv.AbstractModel):
                 if google_attendee.get('found'):
                     continue
 
-                attendee_id = res_partner_obj.search(cr, uid, [('email', '=', google_attendee['email'])], context=context)
+                attendee_id = res_partner_obj.search(cr, uid, [('email', '=', partner_email)], context=context)
                 if not attendee_id:
                     data = {
-                        'email': google_attendee.get('email', False),
+                        'email': partner_email,
                         'customer': False,
-                        'name': google_attendee.get("displayName", False) or google_attendee['email']
+                        'name': google_attendee.get("displayName", False) or partner_email
                     }
                     attendee_id = [res_partner_obj.create(cr, uid, data, context=context)]
                 attendee = res_partner_obj.read(cr, uid, attendee_id[0], ['email'], context=context)