diff --git a/net80211/_ieee80211.h b/net80211/_ieee80211.h
index 3a3734a..b55a9de 100644
--- a/net80211/_ieee80211.h
+++ b/net80211/_ieee80211.h
@@ -34,11 +34,16 @@
 #ifndef _NET80211__IEEE80211_H_
 #define _NET80211__IEEE80211_H_
 
+/* Warning : ieee80211_phytype is used by the HAL in its ABI, so this
+ * enumeration cannot be changed */
+ 
 enum ieee80211_phytype {
-	IEEE80211_T_DS,			/* direct sequence spread spectrum */
-	IEEE80211_T_FH,			/* frequency hopping */
-	IEEE80211_T_OFDM,		/* frequency division multiplexing */
-	IEEE80211_T_TURBO,		/* high rate OFDM, aka turbo mode */
+	IEEE80211_T_DS		= 0,	/* direct sequence spread spectrum */
+	IEEE80211_T_FH		= 1,	/* frequency hopping */
+	IEEE80211_T_OFDM	= 2,	/* frequency division multiplexing */
+	IEEE80211_T_TURBO	= 3,	/* high rate OFDM, aka turbo mode */
+	IEEE80211_T_HT		= 4,	/* High Troughput (802.11n) */
+	IEEE80211_T_XR		= 5,	/* OFDM eXtended Range */
 };
 #define	IEEE80211_T_CCK	IEEE80211_T_DS	/* more common nomenclature */