diff --git a/x11-wm/river/Makefile b/x11-wm/river/Makefile
index e4b147743cd3..ff22e7611859 100644
--- a/x11-wm/river/Makefile
+++ b/x11-wm/river/Makefile
@@ -1,74 +1,77 @@
 PORTNAME=	river
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.1.0
 PORTREVISION=	1
 CATEGORIES=	x11-wm
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
 PATCHFILES+=	0cbe2b9fc34f.patch:-p1 # docs: remove reference to /etc/river/init
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Dynamic tiling Wayland compositor
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	evdev-proto>0:devel/evdev-proto \
 		wayland-protocols>0:graphics/wayland-protocols \
 		wlroots>=0.14.0:x11-toolkits/wlroots \
 		zig>=0.8.0:lang/zig
 LIB_DEPENDS=	libevdev.so:devel/libevdev \
 		libwayland-server.so:graphics/wayland \
 		libwlroots.so:x11-toolkits/wlroots \
 		libinput.so:x11/libinput \
 		libxkbcommon.so:x11/libxkbcommon
 
 USES=		pkgconfig xorg
 USE_GITHUB=	yes
 USE_XORG=	pixman
 GH_ACCOUNT=	riverwm
 GH_TUPLE=	ifreund:zig-pixman:88520f2:zig_pixman/deps/zig-pixman \
 		ifreund:zig-wayland:a8e1efc:zig_wayland/deps/zig-wayland \
 		ifreund:zig-xkbcommon:10cdca6:zig_xkbcommon/deps/zig-xkbcommon \
 		swaywm:zig-wlroots:9bb6b03:zig_wlroots/deps/zig-wlroots
 MAKE_ENV=	DESTDIR="${STAGEDIR}"
 CONFIGURE_ARGS=	--prefix "${PREFIX}" \
 		${WITH_DEBUG:U-Drelease-fast=true} \
 		--verbose
 NO_INSTALL=	yes # strip(1) breaks runtime
 PLIST_FILES=	bin/${PORTNAME} \
 		bin/${PORTNAME}ctl \
 		bin/${PORTNAME}tile \
 		libdata/pkgconfig/${PORTNAME}-protocols.pc \
 		share/${PORTNAME}-protocols/${PORTNAME}-layout-v3.xml \
 		share/bash-completion/completions/${PORTNAME}ctl \
 		share/fish/vendor_completions.d/${PORTNAME}ctl.fish \
 		share/zsh/site-functions/_${PORTNAME}ctl \
 		${NULL}
 
 OPTIONS_DEFINE=	MANPAGES X11
 OPTIONS_DEFAULT=MANPAGES X11
 
 MANPAGES_BUILD_DEPENDS=	scdoc:textproc/scdoc
 MANPAGES_CONFIGURE_ON=	-Dman-pages=true
 MANPAGES_CONFIGURE_OFF=	-Dman-pages=false
 MANPAGES_PLIST_FILES=	share/man/man1/${PORTNAME}.1.gz \
 			share/man/man1/${PORTNAME}ctl.1.gz \
 			share/man/man1/${PORTNAME}tile.1.gz \
 			${NULL}
 
 X11_CONFIGURE_ON=	-Dxwayland=true
 X11_CONFIGURE_OFF=	-Dxwayland=false
 
 post-patch:
 # Respect devel/pkgconf default search
 	@${REINPLACE_CMD} -e '/pkgconfig/s/share/libdata/' \
 		${WRKSRC}/build.zig
+# Respect PREFIX in path references
+	@${REINPLACE_CMD} -e 's,/usr,${LOCALBASE},' \
+		${WRKSRC}/doc/${PORTNAME}ctl.1.scd
 
 do-build:
 	@(cd ${WRKSRC} && ${MAKE_ENV} zig build ${CONFIGURE_ARGS})
 
 do-test:
 	@(cd ${WRKSRC} && ${TEST_ENV} zig build test ${CONFIGURE_ARGS})
 
 .include <bsd.port.mk>