diff --git a/math/jags/Makefile b/math/jags/Makefile
index cb823cc8914d..7b4c17b2eb67 100644
--- a/math/jags/Makefile
+++ b/math/jags/Makefile
@@ -35,10 +35,7 @@ DIST_SUBDIR=	${PORTNAME}
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS=-I${PREFIX}/include LDFLAGS=-L${PREFIX}/lib F77="${F77}"
-BUILD_DEPENDS+=	gfortran42:${PORTSDIR}/lang/gcc42
-WANT_FORTRAN=	yes #dummy but future use
-FC=		gfortran42
-F77=		gfortran42
+USE_FORTRAN=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/math/libRmath/Makefile b/math/libRmath/Makefile
index ba67fb696d63..a24c7ae2957f 100644
--- a/math/libRmath/Makefile
+++ b/math/libRmath/Makefile
@@ -33,10 +33,7 @@ DISTNAME=	R-${PORTVERSION}
 MAINTAINER=	eric+fbports@vangyzen.net
 COMMENT=	The standalone math library from R
 
-BUILD_DEPENDS+=	gfortran42:${PORTSDIR}/lang/gcc42
-WANT_FORTRAN=	yes #dummy but future use
-FC=		gfortran42
-F77=		gfortran42
+USE_FORTRAN=	yes
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 CONFIGURE_TARGET=--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}