--- a/multimerge.py	Tue Jul 05 10:36:22 2016 +0300
+++ b/multimerge.py	Tue Jul 05 10:49:42 2016 +0300
@@ -420,7 +420,10 @@
     # Does the event exist already in the target?
     if event["gcm_id"] in dst_gcm_ids:
         ## Yes. Thus, we just update the event.
-        event["status"] = "confirmed"
+        try:
+            new_event = service.events().update(calendarId=cfg.dest_id, eventId=event["id"], body=event).execute()
+        except Exception as e:
+            gcm_fatal("Failed to update event:\n{0}\n\nERROR: {1}\n".format(event, str(e)))
     else:
         ## Event does not seem to exist. Insert new event.
         event.pop("iCalUID", None)        # Remove the iCalUID, having it conflicts with event ID