diff --git a/devel/cdk/Makefile b/devel/cdk/Makefile
index b8be6f09a5fd..afaa9efbf327 100644
--- a/devel/cdk/Makefile
+++ b/devel/cdk/Makefile
@@ -1,43 +1,43 @@
 PORTNAME=	cdk
 DISTVERSION=	5.0-20240331
 PORTEPOCH=	1
 CATEGORIES=	devel
-MASTER_SITES=	https://invisible-island.net/archives/${PORTNAME}/\
+MASTER_SITES=	https://invisible-island.net/archives/${PORTNAME}/ \
 		https://invisible-mirror.net/archives/${PORTNAME}/
 
 MAINTAINER=	eduardo@FreeBSD.org
 COMMENT=	Curses Development Kit for speedy development of full screen programs
 WWW=		https://invisible-island.net/cdk/
 
 LICENSE=	BSD4CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		gmake ncurses tar:tgz
 USE_LDCONFIG=	yes
 
-GNU_CONFIGURE=	yes
-GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
-CONFIGURE_ARGS+=--with-ncurses
+GNU_CONFIGURE=			yes
+GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
+CONFIGURE_ARGS+=		--with-ncurses
 
 ALL_TARGET=	default cdkshlib
 INSTALL_TARGET=	install installCDKSHLibrary
 
 PORTDOCS=	README
 PORTEXAMPLES=	cli demos examples
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|gcc|$$(CC)| ; \
 		 /^CDKREADME/s| COPYING||' ${WRKSRC}/Makefile.in
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libcdk*.so
 
 post-install-EXAMPLES-on:
 	${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	(cd ${WRKSRC} && \
 		${COPYTREE_SHARE} "${PORTEXAMPLES}" \
 		${STAGEDIR}${EXAMPLESDIR})
 
 .include <bsd.port.mk>