diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index 9cd0030cf09..cc35f716f54 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -2182,6 +2182,12 @@ options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
 #
 options 	HW_WDOG
 
+#
+# Add the Intel ICH watchdog timer driver. This is independent from
+# HW_WDOG option.
+#
+options 	ichwd
+
 #
 # Add software watchdog routines.
 #