diff --git a/mt76_connac2_mac.h b/mt76_connac2_mac.h
index bd2a9246..5f132115 100644
--- a/mt76_connac2_mac.h
+++ b/mt76_connac2_mac.h
@@ -32,6 +32,11 @@ enum {
 	MT_LMAC_PSMP0,
 };
 
+enum {
+	MT_TXS_MPDU_FMT = 0,
+	MT_TXS_PPDU_FMT = 2,
+};
+
 #define MT_TX_FREE_MSDU_CNT		GENMASK(9, 0)
 #define MT_TX_FREE_WLAN_ID		GENMASK(23, 14)
 #define MT_TX_FREE_COUNT		GENMASK(12, 0)
diff --git a/mt76_connac_mac.c b/mt76_connac_mac.c
index 630c6402..b841bf62 100644
--- a/mt76_connac_mac.c
+++ b/mt76_connac_mac.c
@@ -716,6 +716,9 @@ bool mt76_connac2_mac_add_txs_skb(struct mt76_dev *dev, struct mt76_wcid *wcid,
 	struct sk_buff_head list;
 	struct sk_buff *skb;
 
+	if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) == MT_TXS_PPDU_FMT)
+		return false;
+
 	mt76_tx_status_lock(dev, &list);
 	skb = mt76_tx_status_skb_get(dev, wcid, pid, &list);
 	if (skb) {