+--- a/net80211/ieee80211_wireless.c
++++ b/net80211/ieee80211_wireless.c
+@@ -4358,6 +4358,7 @@
+ si->isi_state = ni->ni_flags;
+ si->isi_authmode = ni->ni_authmode;
+ si->isi_rssi = ic->ic_node_getrssi(ni);
++ si->isi_noise = ic->ic_channoise;
+ si->isi_capinfo = ni->ni_capinfo;
+ si->isi_athflags = ni->ni_ath_flags;
+ si->isi_erp = ni->ni_erp;
+--- a/net80211/ieee80211_ioctl.h
++++ b/net80211/ieee80211_ioctl.h
+@@ -311,6 +311,7 @@
+ u_int16_t isi_state; /* state flags */
+ u_int8_t isi_authmode; /* authentication algorithm */
+ u_int8_t isi_rssi;
++ int8_t isi_noise;
+ u_int16_t isi_capinfo; /* capabilities */
+ u_int8_t isi_athflags; /* Atheros capabilities */
+ u_int8_t isi_erp; /* ERP element */