diff -ur ath/if_ath.c ath/if_ath.c.new
--- ath/if_ath.c	2009-04-15 11:09:22.000000000 +0200
+++ ath/if_ath.c.new	2009-04-15 11:16:06.000000000 +0200
@@ -3024,6 +3024,7 @@
 ath_tx_startraw(struct net_device *dev, struct ath_buf *bf, struct sk_buff *skb)
 {
 	struct ath_softc *sc = netdev_priv(dev);
+	struct ieee80211com *ic = &sc->sc_ic;
 	struct ath_hal *ah = sc->sc_ah;
 	struct ieee80211_phy_params *ph = &(SKB_CB(skb)->phy); 
 	const HAL_RATE_TABLE *rt;
@@ -3036,7 +3037,11 @@
 	struct ieee80211_frame *wh;
 
 	wh = (struct ieee80211_frame *)skb->data;
-	try0 = ph->try[0];
+	try0 = (ic->ic_opmode == IEEE80211_M_MONITOR) ? 1 : ph->try[0];
+	/*
+	 * The retry value has to be patched to 1 when injecting,
+	 * otherwise the sequence number will be overwritten
+	 */
 	rt = sc->sc_currates;
 	txrate = dot11_to_ratecode(sc, rt, ph->rate[0]);
 	power = ph->power > 60 ? 60 : ph->power;