diff --git a/internal/ackhandler/sent_packet_handler.go b/internal/ackhandler/sent_packet_handler.go
index 99a51eb80..d4dd6498a 100644
--- a/internal/ackhandler/sent_packet_handler.go
+++ b/internal/ackhandler/sent_packet_handler.go
@@ -306,9 +306,6 @@ func (h *sentPacketHandler) ReceivedAck(ack *wire.AckFrame, encLevel protocol.En
 				h.logger.Debugf("\tupdated RTT: %s (σ: %s)", h.rttStats.SmoothedRTT(), h.rttStats.MeanDeviation())
 			}
 			h.congestion.MaybeExitSlowStart()
-			if h.tracer != nil {
-				h.tracer.UpdatedMetrics(h.rttStats, h.congestion.GetCongestionWindow(), h.bytesInFlight, h.packetsInFlight())
-			}
 		}
 	}
 	if err := h.detectLostPackets(rcvTime, encLevel); err != nil {
@@ -333,6 +330,10 @@ func (h *sentPacketHandler) ReceivedAck(ack *wire.AckFrame, encLevel protocol.En
 	}
 	h.numProbesToSend = 0
 
+	if h.tracer != nil {
+		h.tracer.UpdatedMetrics(h.rttStats, h.congestion.GetCongestionWindow(), h.bytesInFlight, h.packetsInFlight())
+	}
+
 	pnSpace.history.DeleteOldPackets(rcvTime)
 	h.setLossDetectionTimer()
 	return nil