diff --git a/ChangeLog b/ChangeLog
index 273d004..7716192 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-24  Jeremy Soller  <jackpot51@gmail.com>
+
+       * config.sub (-redox*): New.
+       * testsuite/config-sub.data: Add a test case.
+
 2016-12-16  Dimitar Dimitrov  <dimitar@dinux.eu>
 
 	* config.sub (pru, pru-*): Force ELF format.
diff --git a/config.sub b/config.sub
index a2a0112..62b8259 100755
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2016 Free Software Foundation, Inc.
 
-timestamp='2016-11-19'
+timestamp='2016-12-24'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1409,7 +1409,7 @@ case $os in
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
 	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos* | -phoenix* | -fuchsia*)
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index 0b1a5b9..d9d1946 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -512,6 +512,7 @@ x86_64-dicos			x86_64-pc-dicos
 x86_64-ericsson-dicos		x86_64-ericsson-dicos
 x86_64-fuchsia			x86_64-pc-fuchsia
 x86_64-glidix			x86_64-pc-glidix
+x86_64-redox			x86_64-pc-redox
 x86_64-sortix			x86_64-pc-sortix
 x86				x86-unknown-none
 xbox				i686-pc-mingw32