diff --git a/x11/rgb/Makefile b/x11/rgb/Makefile
index d030c4c7b78e..f2319d9a515e 100644
--- a/x11/rgb/Makefile
+++ b/x11/rgb/Makefile
@@ -1,21 +1,23 @@
 PORTNAME=	rgb
 PORTVERSION=	1.1.0
+PORTREVISION=	1
 CATEGORIES=	x11
 
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	Uncompile an rgb color-name database
 WWW=		https://gitlab.freedesktop.org/xorg/app/rgb
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		tar:xz xorg xorg-cat:app
 USE_XORG=	x11 xorgproto
 
+GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 CONFIGURE_ARGS=	--with-rgb-db-dir=${PREFIX}/lib/X11/rgb
 
 PLIST_FILES=	bin/showrgb \
 		lib/X11/rgb.txt \
-		man/man1/showrgb.1.gz
+		share/man/man1/showrgb.1.gz
 
 .include <bsd.port.mk>