diff --git a/chinese/docproj/Makefile b/chinese/docproj/Makefile
--- a/chinese/docproj/Makefile
+++ b/chinese/docproj/Makefile
@@ -16,21 +16,24 @@

 LICENSE=       BSD2CLAUSE

+DEPRECATED=    Deprecated after the doc transition.
+EXPIRATION_DATE=2021-08-31
+
 USES=  iconv
 USE_TEX=       gbklatex:run

 WRKSRC=                ${WRKDIR}/src

 SRC=           ${.CURDIR}/src
 MAKE_ARGS+=    PREFIX=${PREFIX} LOCALBASE=${LOCALBASE} INSTALL_PROGRAM="${INSTALL_PROGRAM}"

 PLIST_FILES=   bin/cjktexsty

 pre-patch:
        @${CP} -R ${SRC} ${WRKDIR}

 post-patch:
        @${REINPLACE_CMD} -e 's/-liconv/${ICONV_LIB}/' \
                ${WRKSRC}/cjktexsty/Makefile

 .include <bsd.port.mk>