diff --git a/sys/dev/ath/ath_rate/sample/sample.h b/sys/dev/ath/ath_rate/sample/sample.h
index d61868d94276..b39e0be71646 100644
--- a/sys/dev/ath/ath_rate/sample/sample.h
+++ b/sys/dev/ath/ath_rate/sample/sample.h
@@ -199,8 +199,8 @@ static unsigned calc_usecs_unicast_packet(struct ath_softc *sc,
 			ctsduration += rt->info[cix].spAckDuration;
 
 		/* XXX assumes short preamble */
-		/* XXX assumes HT/20; the node info isn't yet available here */
-		ctsduration += ath_hal_pkt_txtime(sc->sc_ah, rt, length, rix, 0, is_ht40);
+		ctsduration += ath_hal_pkt_txtime(sc->sc_ah, rt, length, rix,
+		    is_ht40, 0);
 
 		if (cts)	/* SIFS + ACK */
 			ctsduration += rt->info[cix].spAckDuration;
@@ -210,8 +210,9 @@ static unsigned calc_usecs_unicast_packet(struct ath_softc *sc,
 	tt += t_difs;
 
 	/* XXX assumes short preamble */
-	/* XXX assumes HT/20; the node info isn't yet available here */
-	tt += (long_retries+1)*ath_hal_pkt_txtime(sc->sc_ah, rt, length, rix, 0, is_ht40);
+	tt += (long_retries+1)*ath_hal_pkt_txtime(sc->sc_ah, rt, length, rix,
+	    is_ht40, 0);
+
 	tt += (long_retries+1)*(t_sifs + rt->info[rix].spAckDuration);
 
 	for (x = 0; x <= short_retries + long_retries; x++) {