diff --git a/pkg/sfu/buffer/rtpstats_sender.go b/pkg/sfu/buffer/rtpstats_sender.go
index 6dc952e12..618341e75 100644
--- a/pkg/sfu/buffer/rtpstats_sender.go
+++ b/pkg/sfu/buffer/rtpstats_sender.go
@@ -629,7 +629,7 @@ func (r *RTPStatsSender) GetRtcpSenderReport(ssrc uint32, calculatedClockRate ui
 		RTPTimestampExt: nowRTPExt,
 		At:              now,
 	}
-	if r.srNewest != nil {
+	if r.srNewest != nil && nowRTPExt >= r.srNewest.RTPTimestampExt {
 		timeSinceLastReport := nowNTP.Time().Sub(r.srNewest.NTPTimestamp.Time())
 		rtpDiffSinceLastReport := nowRTPExt - r.srNewest.RTPTimestampExt
 		windowClockRate := float64(rtpDiffSinceLastReport) / timeSinceLastReport.Seconds()