Index: sys/dev/iwm/if_iwm.c
===================================================================
--- sys/dev/iwm/if_iwm.c	(revision 305796)
+++ sys/dev/iwm/if_iwm.c	(working copy)
@@ -2970,7 +2970,7 @@
 	} else {
 		rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_5GHZ);
 	}
-	rxs.rssi = rssi - sc->sc_noise;
+	rxs.rssi = rssi;
 	rxs.nf = sc->sc_noise;
 
 	if (ieee80211_radiotap_active_vap(vap)) {