diff --git a/sys/dev/bge/if_bge.c b/sys/dev/bge/if_bge.c
index b12f82bdb6fd..c2de4a5b1bf9 100644
--- a/sys/dev/bge/if_bge.c
+++ b/sys/dev/bge/if_bge.c
@@ -148,6 +148,8 @@ static struct bge_type bge_devs[] = {
 		"Broadcom BCM5704S Dual Gigabit Ethernet" },
 	{ BCOM_VENDORID, BCOM_DEVICEID_BCM5705,
 		"Broadcom BCM5705 Gigabit Ethernet" },
+	{ BCOM_VENDORID, BCOM_DEVICEID_BCM5705K,
+		"Broadcom BCM5705K Gigabit Ethernet" },
 	{ BCOM_VENDORID, BCOM_DEVICEID_BCM5705M,
 		"Broadcom BCM5705M Gigabit Ethernet" },
 	{ BCOM_VENDORID, BCOM_DEVICEID_BCM5705M_ALT,
diff --git a/sys/dev/bge/if_bgereg.h b/sys/dev/bge/if_bgereg.h
index ac94af74843e..9893a1a9163c 100644
--- a/sys/dev/bge/if_bgereg.h
+++ b/sys/dev/bge/if_bgereg.h
@@ -1819,6 +1819,7 @@ struct bge_status_block {
 #define BCOM_DEVICEID_BCM5704C		0x1648
 #define BCOM_DEVICEID_BCM5704S		0x16A8
 #define BCOM_DEVICEID_BCM5705		0x1653
+#define BCOM_DEVICEID_BCM5705K		0x1654
 #define BCOM_DEVICEID_BCM5705M		0x165D
 #define BCOM_DEVICEID_BCM5705M_ALT	0x165E
 #define BCOM_DEVICEID_BCM5782		0x1696