diff --git a/exchangelib/items/calendar_item.py b/exchangelib/items/calendar_item.py
index <HASH>..<HASH> 100644
--- a/exchangelib/items/calendar_item.py
+++ b/exchangelib/items/calendar_item.py
@@ -336,8 +336,6 @@ class MeetingResponse(BaseMeetingItem):
     """MSDN: https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/meetingresponse"""
     ELEMENT_NAME = 'MeetingResponse'
     LOCAL_FIELDS = Fields(
-        AssociatedCalendarItemIdField('associated_calendar_item_id', field_uri='meeting:AssociatedCalendarItemId',
-                                      value_cls=AssociatedCalendarItemId),
         MailboxField('received_by', field_uri='message:ReceivedBy', is_read_only=True),
         MailboxField('received_representing', field_uri='message:ReceivedRepresenting', is_read_only=True),
         DateTimeField('proposed_start', field_uri='meeting:ProposedStart', supported_from=EXCHANGE_2013),
Remove duplicate field. Was already defined in BaseMeetingItem