diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c
index 5332e1a..b80980d 100644
--- a/drivers/net/phy/atheros.c
+++ b/drivers/net/phy/atheros.c
@@ -41,7 +41,7 @@
 static struct phy_driver AR8021_driver =  {
 	.name = "AR8021",
 	.uid = 0x4dd040,
-	.mask = 0x4fffff,
+	.mask = 0x4ffff0,
 	.features = PHY_GBIT_FEATURES,
 	.config = ar8021_config,
 	.startup = genphy_startup,