diff --git a/science/libctl/Makefile b/science/libctl/Makefile
index 2c21d1f1bd9f..516cd86851d8 100644
--- a/science/libctl/Makefile
+++ b/science/libctl/Makefile
@@ -1,34 +1,35 @@
 PORTNAME=	libctl
 DISTVERSION=	4.5.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	science math
 MASTER_SITES=	https://github.com/NanoComp/libctl/releases/download/v${DISTVERSION}/
 
 MAINTAINER=	devel@stasyan.com
 COMMENT=	Control Language Library
 WWW=		https://libctl.readthedocs.io/en/latest/
 
 LICENSE=	GPLv2
 
 USES=		fortran guile:2.2 libtool pkgconfig
 GNU_CONFIGURE=	yes
+GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 CONFIGURE_ARGS=	--enable-shared
 USE_LDCONFIG=	yes
 LDFLAGS+=	-L${LOCALBASE}/lib -lm
 
 OPTIONS_DEFINE=		NLOPT DOCS EXAMPLES
 OPTIONS_DEFAULT=	NLOPT
 NLOPT_DESC=		Use NLopt, an external NonLinear OPTimizer
 
 NLOPT_LIB_DEPENDS=	libnlopt.so:math/nlopt
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${CP} -R ${WRKSRC}/doc/ ${STAGEDIR}${DOCSDIR}
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${CP} -R ${WRKSRC}/examples/ ${STAGEDIR}${EXAMPLESDIR}
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libctl.so.7.3.0
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libctlgeom.so.7.3.0
 	@${STRIP_CMD} ${STAGEDIR}${EXAMPLESDIR}/.libs/example
 
 .include <bsd.port.mk>
diff --git a/science/libctl/pkg-plist b/science/libctl/pkg-plist
index e19787c24bb2..65fe0b007d91 100644
--- a/science/libctl/pkg-plist
+++ b/science/libctl/pkg-plist
@@ -1,66 +1,66 @@
 bin/gen-ctl-io
 include/ctl-math.h
 include/ctl.h
 include/ctlgeom-types.h
 include/ctlgeom.h
 lib/libctl.a
 lib/libctl.so
 lib/libctl.so.7
 lib/libctl.so.7.3.0
 lib/libctlgeom.a
 lib/libctlgeom.so
 lib/libctlgeom.so.7
 lib/libctlgeom.so.7.3.0
-man/man1/gen-ctl-io.1.gz
+share/man/man1/gen-ctl-io.1.gz
 %%PORTDOCS%%%%DOCSDIR%%/README
 %%PORTDOCS%%%%DOCSDIR%%/docs/Advanced_User_Experience.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/Basic_User_Experience.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/Developer_Experience.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/Guile_and_Scheme_Information.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/Installation.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/Introduction.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/License_and_Copyright.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/User_Reference.md
 %%PORTDOCS%%%%DOCSDIR%%/docs/images/libctl-logo.png
 %%PORTDOCS%%%%DOCSDIR%%/docs/index.md
 %%PORTDOCS%%%%DOCSDIR%%/requirements.txt
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/.deps/example-ctl-io.Po
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/.deps/example-example.Po
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/.deps/example-geom.Po
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/.deps/example-main.Po
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/.libs/example
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/Makefile
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/Makefile.am
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/Makefile.in
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/README
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/ctl-io.c
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/ctl-io.h
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example-ctl-io.o
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example-example.o
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example-geom.o
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example-main.o
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example.c
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example.scm
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example.scm.in
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/geom.c
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/main.c
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/run.ctl
 %%DATADIR%%/base/class.scm
 %%DATADIR%%/base/ctl.scm
 %%DATADIR%%/base/extern-funcs.scm
 %%DATADIR%%/base/help.scm
 %%DATADIR%%/base/include.scm
 %%DATADIR%%/base/interaction.scm
 %%DATADIR%%/base/io-vars.scm
 %%DATADIR%%/base/main.c
 %%DATADIR%%/base/math-utils.scm
 %%DATADIR%%/base/matrix3x3.scm
 %%DATADIR%%/base/simplex.scm
 %%DATADIR%%/base/utils.scm
 %%DATADIR%%/base/vector3.scm
 %%DATADIR%%/utils/ctl-io.scm
 %%DATADIR%%/utils/geom.c
 %%DATADIR%%/utils/geom.scm
 %%DATADIR%%/utils/nlopt-constants.scm
 %%DATADIR%%/utils/nlopt.c