diff --git a/sys/dev/mii/brgphy.c b/sys/dev/mii/brgphy.c
index 2c14ea559a83..d852e802db87 100644
--- a/sys/dev/mii/brgphy.c
+++ b/sys/dev/mii/brgphy.c
@@ -139,6 +139,7 @@ static const struct mii_phydesc brgphys[] = {
 	MII_PHY_DESC(BROADCOM2, BCM5754),
 	MII_PHY_DESC(BROADCOM2, BCM5761),
 	MII_PHY_DESC(BROADCOM2, BCM5784),
+	MII_PHY_DESC(BROADCOM2, BCM5785),
 	MII_PHY_DESC(BROADCOM3, BCM5717C),
 	MII_PHY_DESC(BROADCOM3, BCM5719C),
 	MII_PHY_DESC(BROADCOM3, BCM5720C),