diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index c1cb20fceaff3552674b0a9a230e65a0e2d16398..f1566f93696e00f75a4613e472129f3a8d6df142 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -782,6 +782,10 @@ struct mwl8k_rxd_8366 {
 	__u8 rx_ctrl;
 } __attribute__((packed));
 
+#define MWL8K_8366_RATE_INFO_MCS_FORMAT		0x80
+#define MWL8K_8366_RATE_INFO_40MHZ		0x40
+#define MWL8K_8366_RATE_INFO_RATEID(x)		((x) & 0x3f)
+
 #define MWL8K_8366_RX_CTRL_OWNED_BY_HOST	0x80
 
 static void mwl8k_rxd_8366_init(void *_rxd, dma_addr_t next_dma_addr)
@@ -817,9 +821,11 @@ mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status,
 	status->signal = -rxd->rssi;
 	status->noise = -rxd->noise_floor;
 
-	if (rxd->rate & 0x80) {
+	if (rxd->rate & MWL8K_8366_RATE_INFO_MCS_FORMAT) {
 		status->flag |= RX_FLAG_HT;
-		status->rate_idx = rxd->rate & 0x7f;
+		if (rxd->rate & MWL8K_8366_RATE_INFO_40MHZ)
+			status->flag |= RX_FLAG_40MHZ;
+		status->rate_idx = MWL8K_8366_RATE_INFO_RATEID(rxd->rate);
 	} else {
 		int i;