diff --git a/math/form/Makefile b/math/form/Makefile
index bb946fdc542a..1aa427f334a1 100644
--- a/math/form/Makefile
+++ b/math/form/Makefile
@@ -1,6 +1,7 @@
 PORTNAME=	form
-PORTVERSION=	4.3.1
 DISTVERSIONPREFIX=	v
+DISTVERSION=	4.3.1
+PORTREVISION=	1
 CATEGORIES=	math
 
 MAINTAINER=	ehaupt@FreeBSD.org
@@ -35,9 +36,13 @@ OPENMPI_CONFIGURE_ENABLE=	parform
 OPENMPI_CONFIGURE_ENV+=		MPICC="${MPICC}" \
 				MPICXX="${MPICXX}"
 
+# remove after manprefix migration
+GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
+
 .include <bsd.port.options.mk>
 
-.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302507 && ${OSVERSION} < 1400000 ))
+.if ${OPSYS} == FreeBSD && (${OSVERSION} >= 1400091 || (${OSVERSION} >= 1302507 && \
+	${OSVERSION} < 1400000))
 CFLAGS+=	-Wno-error=incompatible-function-pointer-types
 .endif
 
diff --git a/math/form/pkg-plist b/math/form/pkg-plist
index 97989d9ecbb0..4177f77b9b7c 100644
--- a/math/form/pkg-plist
+++ b/math/form/pkg-plist
@@ -1,7 +1,7 @@
 bin/form
 bin/tform
 %%OPENMPI%%bin/parform
-man/man1/form.1.gz
+share/man/man1/form.1.gz
 %%DOXYGEN%%%%DOCSDIR%%/html/manual.css
 %%DOXYGEN%%%%DOCSDIR%%/html/manual.html
 %%DOXYGEN%%%%DOCSDIR%%/html/manual0x.png