diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index 9212cea..08d04a3 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -258,7 +258,11 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		hdr->flags = cpu_to_le32(flags);
 		hdr->len = 0;
 		hdr->rts_duration = rts_dur;
-		hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
+		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+		  hdr->retry =
+		    cpu_to_le32((info->control.rates[0].count - 1) << 8);
+		else
+		  hdr->retry = 0;
 		buf = hdr;
 
 		ep = 2;
@@ -276,7 +280,11 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		memset(hdr, 0, sizeof(*hdr));
 		hdr->flags = cpu_to_le32(flags);
 		hdr->rts_duration = rts_dur;
-		hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
+		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+		  hdr->retry =
+		    cpu_to_le32((info->control.rates[0].count - 1) << 8);
+		else
+		  hdr->retry = 0;
 		hdr->tx_duration =
 			ieee80211_generic_frame_duration(dev, priv->vif,
 							 skb->len, txrate);
