diff --git a/sys/dev/usb/wlan/if_uath.c b/sys/dev/usb/wlan/if_uath.c
index 98c494355bc..f647daec99f 100644
--- a/sys/dev/usb/wlan/if_uath.c
+++ b/sys/dev/usb/wlan/if_uath.c
@@ -517,12 +517,12 @@ uath_detach(device_t dev)
 
 	sc->sc_flags |= UATH_FLAG_INVALID;
 	uath_stop(ifp);
-	ieee80211_ifdetach(ic);
 
 	callout_drain(&sc->stat_ch);
 	callout_drain(&sc->watchdog_ch);
 
 	usb2_transfer_unsetup(sc->sc_xfer, UATH_N_XFERS);
+	ieee80211_ifdetach(ic);
 
 	/* free buffers */
 	UATH_LOCK(sc);
diff --git a/sys/dev/usb/wlan/if_upgt.c b/sys/dev/usb/wlan/if_upgt.c
index 3bef0b43359..d99c7400863 100644
--- a/sys/dev/usb/wlan/if_upgt.c
+++ b/sys/dev/usb/wlan/if_upgt.c
@@ -2002,12 +2002,12 @@ upgt_detach(device_t dev)
 		return 0;
 
 	upgt_stop(sc);
-	ieee80211_ifdetach(ic);
 
 	callout_drain(&sc->sc_led_ch);
 	callout_drain(&sc->sc_watchdog_ch);
 
 	usb2_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
+	ieee80211_ifdetach(ic);
 	upgt_free_rx(sc);
 	upgt_free_tx(sc);