diff --git a/math/octave-forge-gsl/Makefile b/math/octave-forge-gsl/Makefile
index 24ad569b9836..4a3483d1fe3a 100644
--- a/math/octave-forge-gsl/Makefile
+++ b/math/octave-forge-gsl/Makefile
@@ -1,21 +1,23 @@
 PORTNAME=	octave-forge-gsl
 PORTVERSION=	2.1.1
 PORTREVISION=	14
 CATEGORIES=	math
 MASTER_SITES=	SF/octave/Octave%20Forge%20Packages/Individual%20Package%20Releases
 DISTNAME=	${OCTAVE_PKGNAME}-${DISTVERSIONFULL}
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	Octave-forge package ${OCTAVE_PKGNAME}
 WWW=		https://packages.octave.org/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKDIR}/${OCTAVE_SRC}/COPYING
 
 LIB_DEPENDS=	libgsl.so:math/gsl
 
 USES=		octave
 
+LDFLAGS+=	-L${PREFIX}/lib
+
 GNU_CONFIGURE=	yes
 
 .include <bsd.port.mk>