diff --git a/graphics/quat/Makefile b/graphics/quat/Makefile
index f007fbf8599d..f4d2a9dea65e 100644
--- a/graphics/quat/Makefile
+++ b/graphics/quat/Makefile
@@ -4,13 +4,11 @@
 PORTNAME=	quat
 PORTVERSION=	1.20
 CATEGORIES=	graphics
-#MASTER_SITES=	http://www.physcip.uni-stuttgart.de/phy11733/download/
-MASTER_SITES=	http://www.sourcefiles.org/Graphics/Fractals/
+MASTER_SITES=	https://www.physcip.uni-stuttgart.de/pages/~phy11733/download/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Three-dimensional fractal creator (command line only)
 
-BROKEN=		unfetchable
 LICENSE=	GPLv2+
 
 OPTIONS_DEFINE=	OPTIMIZED_CFLAGS DOCS
@@ -22,11 +20,7 @@ CONFIGURE_ARGS=	--disable-gui \
 PORTDOCS=	*
 PLIST_FILES=	bin/quat-txt
 
-.include <bsd.port.options.mk>
-
-.if ${PORT_OPTIONS:MOPTIMIZED_CFLAGS}
-CFLAGS+=	-O3 -ffast-math
-.endif
+OPTIMIZED_CFLAGS_CFLAGS=	-O3 -ffast-math
 
 post-patch:
 	@${REINPLACE_CMD} -E -e \
@@ -42,9 +36,9 @@ post-patch:
 		 s|^(SUBDIRS.*)doc|\1|' \
 		${WRKSRC}/Makefile.in
 
-post-install:
+post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
-	@(cd ${WRKSRC}/doc && ${SETENV} ${MAKE_ENV} ${MAKE} ${MAKE_FLAGS} \
+	(cd ${WRKSRC}/doc && ${SETENV} ${MAKE_ENV} ${MAKE} ${MAKE_FLAGS} \
 		${MAKEFILE} ${MAKE_ARGS} ${INSTALL_TARGET})
 
 .include <bsd.port.mk>
diff --git a/graphics/quat/pkg-descr b/graphics/quat/pkg-descr
index c97d2cac9751..1ee760fcce5f 100644
--- a/graphics/quat/pkg-descr
+++ b/graphics/quat/pkg-descr
@@ -8,3 +8,5 @@ data).
 Generation of a really three dimensional view is possible (3d
 stereo). The fractal can be seen three dimensional without any
 utilities like 3d glasses.
+
+WWW: https://www.physcip.uni-stuttgart.de/pages/~phy11733/index_e.html