diff --git a/tools/tools/tinderbox/etc/releng_5.rc b/tools/tools/tinderbox/etc/releng_5.rc
index 2dcc2b76b9c..4d70036aa2f 100644
--- a/tools/tools/tinderbox/etc/releng_5.rc
+++ b/tools/tools/tinderbox/etc/releng_5.rc
@@ -4,6 +4,6 @@
 # $FreeBSD$
 #
 
-branches	= RELENG_5_4, RELENG_5
+branches	= RELENG_5_4, RELENG_5_5, RELENG_5
 platforms	= alpha, amd64, i386/i386, i386/pc98, sparc64
 recipient	= %%SENDER%%,<stable@freebsd.org>,<%%arch%%@freebsd.org>
diff --git a/tools/tools/tinderbox/etc/update_releng_5.rc b/tools/tools/tinderbox/etc/update_releng_5.rc
index e0442a9a85d..03f168ab1e5 100644
--- a/tools/tools/tinderbox/etc/update_releng_5.rc
+++ b/tools/tools/tinderbox/etc/update_releng_5.rc
@@ -1,4 +1,4 @@
 # $FreeBSD$
-branches	= RELENG_5_4, RELENG_5
+branches	= RELENG_5_4, RELENG_5_5, RELENG_5
 platforms	= alpha, amd64, i386/i386, i386/pc98, sparc64
 targets		= update