diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index b1b0ec76157b..e0318415c2a0 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -475,7 +475,6 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
 
 	return rfilt;
 
-#undef RX_FILTER_PRESERVE
 }
 
 int ath_startrecv(struct ath_softc *sc)