diff --git a/sys/boot/common/loader.8 b/sys/boot/common/loader.8
index d931ef4b5f76..a8f5b2c82aa3 100644
--- a/sys/boot/common/loader.8
+++ b/sys/boot/common/loader.8
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 25, 2015
+.Dd November 18, 2015
 .Dt LOADER 8
 .Os
 .Sh NAME
@@ -471,6 +471,14 @@ userland output (e.g.\& from
 .It Va currdev
 Selects the default device.
 Syntax for devices is odd.
+.It Va dumpdev
+Sets the device for kernel dumps.
+This can be used to ensure that a device is configured before the corresponding
+.Va dumpdev
+directive from
+.Xr rc.conf 5
+has been processed, allowing kernel panics that happen during the early stages
+of boot to be captured.
 .It Va init_chroot
 If set to a valid directory in the root file system, it causes
 .Xr init 8