diff --git a/release/Makefile.inc.docports b/release/Makefile.inc.docports
index bd6786b3576c..60b7ec3efc6b 100644
--- a/release/Makefile.inc.docports
+++ b/release/Makefile.inc.docports
@@ -9,6 +9,16 @@
 # names, so the required part of the ports infrastructure will
 # be cvs co'ed accordingly.
 #
+
+# Get __FreeBSD_version
+.if !defined(OSVERSION)
+.if exists(/sbin/sysctl)
+OSVERSION!=	/sbin/sysctl -n kern.osreldate
+.else
+OSVERSION!=	/usr/sbin/sysctl -n kern.osreldate
+.endif
+.endif
+
 MINIMALDOCPORTS= \
 	ports/Mk \
 	ports/archivers/unzip \
@@ -47,6 +57,9 @@ MINIMALDOCPORTS= \
 	ports/textproc/xhtml \
 	ports/www/links1 \
 	ports/www/tidy
+.if ${OSVERSION} < 460101 || ( ${OSVERSION} >= 500000 && ${OSVERSION} < 500036 )
+MINIMALDOCPORTS+=	ports/textproc/sed_inplace
+.endif
 .if ${MACHINE_ARCH} == "alpha"
 MINIMALDOCPORTS+=	ports/textproc/openjade
 .else