diff --git a/math/octave-forge-ad/Makefile b/math/octave-forge-ad/Makefile
index 0c2dc902e0d2..62292d22a2fe 100644
--- a/math/octave-forge-ad/Makefile
+++ b/math/octave-forge-ad/Makefile
@@ -1,20 +1,27 @@
 # Created by: Stephen Montgomery-Smith <stephen@math.missouri.edu>
 # $FreeBSD$
 
 PORTNAME=	octave-forge-ad
 PORTVERSION=	1.0.6
 PORTREVISION=	12
 CATEGORIES=	math
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	Octave-forge package ${OCTAVE_PKGNAME}
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV+=	HOME=${WRKSRC}
 USES=		dos2unix
 
 .include "${.CURDIR}/../../Mk/bsd.octave.mk"
-.include <bsd.port.mk>
+
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} < 1100000
+BROKEN=		Doesn't build on FreeBSD 10 or older
+.endif
+
+.include <bsd.port.post.mk>