diff --git a/mac80211.c b/mac80211.c
index 41afb11b..12fcb2b0 100644
--- a/mac80211.c
+++ b/mac80211.c
@@ -1745,11 +1745,16 @@ mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,
 }
 EXPORT_SYMBOL_GPL(mt76_init_queue);
 
-u16 mt76_calculate_default_rate(struct mt76_phy *phy, int rateidx)
+u16 mt76_calculate_default_rate(struct mt76_phy *phy,
+				struct ieee80211_vif *vif, int rateidx)
 {
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct cfg80211_chan_def *chandef = mvif->ctx ?
+					    &mvif->ctx->def :
+					    &phy->chandef;
 	int offset = 0;
 
-	if (phy->chandef.chan->band != NL80211_BAND_2GHZ)
+	if (chandef->chan->band != NL80211_BAND_2GHZ)
 		offset = 4;
 
 	/* pick the lowest rate for hidden nodes */
diff --git a/mt76.h b/mt76.h
index ce975036..a2382160 100644
--- a/mt76.h
+++ b/mt76.h
@@ -1106,7 +1106,8 @@ int mt76_get_of_eeprom(struct mt76_dev *dev, void *data, int offset, int len);
 struct mt76_queue *
 mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,
 		int ring_base, u32 flags);
-u16 mt76_calculate_default_rate(struct mt76_phy *phy, int rateidx);
+u16 mt76_calculate_default_rate(struct mt76_phy *phy,
+				struct ieee80211_vif *vif, int rateidx);
 static inline int mt76_init_tx_queue(struct mt76_phy *phy, int qid, int idx,
 				     int n_desc, int ring_base, u32 flags)
 {
diff --git a/mt76_connac_mac.c b/mt76_connac_mac.c
index 3b63c64e..93402d2c 100644
--- a/mt76_connac_mac.c
+++ b/mt76_connac_mac.c
@@ -293,7 +293,10 @@ u16 mt76_connac2_mac_tx_rate_val(struct mt76_phy *mphy,
 				 struct ieee80211_vif *vif,
 				 bool beacon, bool mcast)
 {
-	u8 nss = 0, mode = 0, band = mphy->chandef.chan->band;
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct cfg80211_chan_def *chandef = mvif->ctx ?
+					    &mvif->ctx->def : &mphy->chandef;
+	u8 nss = 0, mode = 0, band = chandef->chan->band;
 	int rateidx = 0, mcast_rate;
 
 	if (!vif)
@@ -326,7 +329,7 @@ u16 mt76_connac2_mac_tx_rate_val(struct mt76_phy *mphy,
 		rateidx = ffs(vif->bss_conf.basic_rates) - 1;
 
 legacy:
-	rateidx = mt76_calculate_default_rate(mphy, rateidx);
+	rateidx = mt76_calculate_default_rate(mphy, vif, rateidx);
 	mode = rateidx >> 8;
 	rateidx &= GENMASK(7, 0);
 out: