diff --git a/tools/build/mk/OptionalObsoleteFiles.inc b/tools/build/mk/OptionalObsoleteFiles.inc
index 4361d08f5693..f51e15e1d28f 100644
--- a/tools/build/mk/OptionalObsoleteFiles.inc
+++ b/tools/build/mk/OptionalObsoleteFiles.inc
@@ -4081,6 +4081,7 @@ OLD_FILES+=usr/bin/rcsdiff
 OLD_FILES+=usr/bin/rcsfreeze
 OLD_FILES+=usr/bin/rcsmerge
 OLD_FILES+=usr/bin/rlog
+OLD_FILES+=usr/sbin/etcupdate
 OLD_FILES+=usr/share/man/man1/ci.1.gz
 OLD_FILES+=usr/share/man/man1/co.1.gz
 OLD_FILES+=usr/share/man/man1/ident.1.gz
@@ -4093,6 +4094,7 @@ OLD_FILES+=usr/share/man/man1/rcsintro.1.gz
 OLD_FILES+=usr/share/man/man1/rcsmerge.1.gz
 OLD_FILES+=usr/share/man/man1/rlog.1.gz
 OLD_FILES+=usr/share/man/man5/rcsfile.5.gz
+OLD_FILES+=usr/share/man/man8/etcupdate.8.gz
 .endif
 
 #.if ${MK_RESCUE} == no
diff --git a/tools/build/options/WITHOUT_RCS b/tools/build/options/WITHOUT_RCS
index 2a4ddecab440..e21e0270d52d 100644
--- a/tools/build/options/WITHOUT_RCS
+++ b/tools/build/options/WITHOUT_RCS
@@ -1,4 +1,6 @@
 .\" $FreeBSD$
 Set to not build
 .Xr rcs 1
-and related utilities.
+,
+.Xr etcupdate 8
+, and related utilities.
diff --git a/usr.sbin/Makefile b/usr.sbin/Makefile
index 81be7086fde6..57effb84c450 100644
--- a/usr.sbin/Makefile
+++ b/usr.sbin/Makefile
@@ -23,7 +23,6 @@ SUBDIR=	adduser \
 	digictl \
 	diskinfo \
 	dumpcis \
-	etcupdate \
 	extattr \
 	extattrctl \
 	fifolog \
@@ -302,6 +301,10 @@ SUBDIR+=	repquota
 SUBDIR+=	rwhod
 .endif
 
+.if ${MK_RCS} != "no"
+SUBDIR+=	etcupdate
+.endif
+
 .if ${MK_SENDMAIL} != "no"
 SUBDIR+=	editmap
 SUBDIR+=	mailstats