diff --git a/UI/MailPartViewers/UIxMailPartICalActions.m b/UI/MailPartViewers/UIxMailPartICalActions.m
index b7e7666ce..06cf8395c 100644
--- a/UI/MailPartViewers/UIxMailPartICalActions.m
+++ b/UI/MailPartViewers/UIxMailPartICalActions.m
@@ -220,7 +220,7 @@
 	rsvp = nil;
       [eventObject saveContentString: [calendar versitString]];
       if ([rsvp isEqualToString: @"true"])
-	[eventObject sendResponseToOrganizer];
+	[eventObject sendResponseToOrganizer: chosenEvent];
       organizerUID = [[chosenEvent organizer] uid];
       if (organizerUID)
 	[self _updateAttendee: user withSequence: [chosenEvent sequence]