diff --git a/sys/dev/ichwd/ichwd.c b/sys/dev/ichwd/ichwd.c
index a47eccd3d39..33a64db0936 100644
--- a/sys/dev/ichwd/ichwd.c
+++ b/sys/dev/ichwd/ichwd.c
@@ -109,6 +109,7 @@ static struct ichwd_device ichwd_devices[] = {
 	{ DEVICEID_ICH10D,   "Intel ICH10D watchdog timer",	10 },
 	{ DEVICEID_ICH10DO,  "Intel ICH10DO watchdog timer",	10 },
 	{ DEVICEID_ICH10R,   "Intel ICH10R watchdog timer",	10 },
+	{ DEVICEID_H55,      "Intel H55 watchdog timer",	10 },
 	{ 0, NULL, 0 },
 };
 
diff --git a/sys/dev/ichwd/ichwd.h b/sys/dev/ichwd/ichwd.h
index 51ed26ddfd9..549c4c615db 100644
--- a/sys/dev/ichwd/ichwd.h
+++ b/sys/dev/ichwd/ichwd.h
@@ -99,6 +99,7 @@ struct ichwd_softc {
 #define DEVICEID_ICH10D		0x3a1a
 #define DEVICEID_ICH10DO	0x3a14
 #define DEVICEID_ICH10R		0x3a16
+#define DEVICEID_H55		0x3b06
 
 /* ICH LPC Interface Bridge Registers (ICH5 and older) */
 #define ICH_GEN_STA		0xd4