diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 3b3dcae..2d1acc6 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -692,7 +692,6 @@
 	struct minstrel_ht_sta_priv *msp = priv_sta;
 	struct minstrel_ht_sta *mi = &msp->ht;
 	struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
-	struct ieee80211_local *local = hw_to_local(mp->hw);
 	u16 sta_cap = sta->ht_cap.cap;
 	int n_supported = 0;
 	int ack_dur;
@@ -711,8 +710,8 @@
 	memset(mi, 0, sizeof(*mi));
 	mi->stats_update = jiffies;
 
-	ack_dur = ieee80211_frame_duration(local, 10, 60, 1, 1);
-	mi->overhead = ieee80211_frame_duration(local, 0, 60, 1, 1) + ack_dur;
+	ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1);
+	mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1) + ack_dur;
 	mi->overhead_rtscts = mi->overhead + 2 * ack_dur;
 
 	mi->avg_ampdu_len = MINSTREL_FRAC(1, 1);