diff --git a/pkg/tcpip/transport/tcp/snd.go b/pkg/tcpip/transport/tcp/snd.go
index 1e20ac2c3..4d836eeea 100644
--- a/pkg/tcpip/transport/tcp/snd.go
+++ b/pkg/tcpip/transport/tcp/snd.go
@@ -418,6 +418,7 @@ func (s *sender) updateRTO(rtt time.Duration) {
 	}
 
 	s.RTO = s.rtt.TCPRTTState.SRTT + 4*s.rtt.TCPRTTState.RTTVar
+	s.RTTState = s.rtt.TCPRTTState
 	s.rtt.Unlock()
 	if s.RTO < s.minRTO {
 		s.RTO = s.minRTO