diff --git a/pkg/connector/backfill.go b/pkg/connector/backfill.go
index 7fbd5c77..c847af18 100644
--- a/pkg/connector/backfill.go
+++ b/pkg/connector/backfill.go
@@ -199,7 +199,7 @@ func (t *TelegramClient) FetchMessages(ctx context.Context, fetchParams bridgev2
 		if fetchParams.Forward {
 			_, req.MinID, err = ids.ParseMessageID(fetchParams.AnchorMessage.ID)
 		} else {
-			_, req.MaxID, err = ids.ParseMessageID(fetchParams.AnchorMessage.ID)
+			_, req.OffsetID, err = ids.ParseMessageID(fetchParams.AnchorMessage.ID)
 		}
 		if err != nil {
 			return nil, err