diff --git a/sys/dev/usb/if_kue.c b/sys/dev/usb/if_kue.c
index b4fa8d496ec4..5804e931517a 100644
--- a/sys/dev/usb/if_kue.c
+++ b/sys/dev/usb/if_kue.c
@@ -511,9 +511,10 @@ kue_detach(device_t dev)
 
 	sc->kue_dying = 1;
 
-	if (ifp != NULL)
+	if (ifp != NULL) {
 		ether_ifdetach(ifp);
 		if_free(ifp);
+	}
 
 	if (sc->kue_ep[KUE_ENDPT_TX] != NULL)
 		usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);