diff --git a/pkg/sfu/buffer/rtpstats.go b/pkg/sfu/buffer/rtpstats.go
index 0c1952a69..574d7a543 100644
--- a/pkg/sfu/buffer/rtpstats.go
+++ b/pkg/sfu/buffer/rtpstats.go
@@ -527,7 +527,7 @@ func (r *RTPStats) UpdateFromReceiverReport(rr rtcp.ReceptionReport) (rtt uint32
 	r.lock.Lock()
 	defer r.lock.Unlock()
 
-	if !r.endTime.IsZero() || !r.params.IsReceiverReportDriven || rr.LastSequenceNumber < r.extStartSN {
+	if !r.initialized || !r.endTime.IsZero() || !r.params.IsReceiverReportDriven || rr.LastSequenceNumber < r.extStartSN {
 		// it is possible that the `LastSequenceNumber` in the receiver report is before the starting
 		// sequence number when dummy packets are used to trigger Pion's OnTrack path.
 		return