diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index 0ae5988..04ab457 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1498,7 +1498,8 @@
 	__le16 fc = hdr->frame_control;
 
 	/* lowest rate for management and multicast/broadcast frames */
-	if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1)) {
+	if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
+	    !sta) {
 		tx_info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		tx_info->control.rates[0].count =
 			is_multicast_ether_addr(hdr->addr1) ? 1 : ATH_MGT_TXMAXTRY;