diff --git a/pkg/sfu/buffer/rtpstats.go b/pkg/sfu/buffer/rtpstats.go
index 2fdcbb4c5..3dd477481 100644
--- a/pkg/sfu/buffer/rtpstats.go
+++ b/pkg/sfu/buffer/rtpstats.go
@@ -1591,8 +1591,8 @@ func (r *RTPStats) getDrift() (packetDrift *livekit.RTPDrift, reportDrift *livek
 				StartTime:      timestamppb.New(r.srFirst.NTPTimestamp.Time()),
 				EndTime:        timestamppb.New(r.srNewest.NTPTimestamp.Time()),
 				Duration:       elapsed.Seconds(),
-				StartTimestamp: r.timestamp.GetExtendedStart(),
-				EndTimestamp:   r.timestamp.GetExtendedHighest(),
+				StartTimestamp: r.srFirst.RTPTimestampExt,
+				EndTimestamp:   r.srNewest.RTPTimestampExt,
 				RtpClockTicks:  rtpClockTicks,
 				DriftSamples:   driftSamples,
 				DriftMs:        (float64(driftSamples) * 1000) / float64(r.params.ClockRate),