diff --git a/japanese/lookup/Makefile b/japanese/lookup/Makefile
index 92a571ab1bf2..2915c3c2094b 100644
--- a/japanese/lookup/Makefile
+++ b/japanese/lookup/Makefile
@@ -1,36 +1,32 @@
 PORTNAME=	lookup
 PORTVERSION=	1.99.96.20180209
 PORTREVISION=	22
 CATEGORIES=	japanese elisp
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Emacs search interface for CD-ROM books, etc
 WWW=		https://lookup2.github.io/
 
 LICENSE=	GPLv2+
 
 USES=		autoreconf emacs:build makeinfo
 USE_GITHUB=	yes
 GH_ACCOUNT=	lookup2
 GH_PROJECT=	lookup2
 GH_TAGNAME=	c4f4986
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-emacs=${EMACS_CMD} \
 		--with-lispdir=${PREFIX}/${EMACS_SITE_LISPDIR}
 
-CONFLICTS_INSTALL=	ja-lookup-emacs_*
-
 NO_ARCH=	yes
 
 INFO=		lookup
 PORTDOCS=	AUTHORS ChangeLog NEWS README.md
 
 OPTIONS_DEFINE=	DOCS
 
-post-install:
-	@${FIND} ${STAGEDIR}${PREFIX}/${EMACS_SITE_LISPDIR}/lookup \
-		-name "*.elc" -delete
-	${MKDIR} ${STAGEDIR}${DOCSDIR}
+post-install-DOCS-on:
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${PORTDOCS:S,^,${WRKSRC}/,} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>
diff --git a/japanese/lookup/files/patch-lisp_Makefile.am b/japanese/lookup/files/patch-lisp_Makefile.am
new file mode 100644
index 000000000000..66ac9213ad82
--- /dev/null
+++ b/japanese/lookup/files/patch-lisp_Makefile.am
@@ -0,0 +1,18 @@
+--- lisp/Makefile.am.orig	2018-02-09 12:17:06 UTC
++++ lisp/Makefile.am
+@@ -35,13 +35,13 @@ SOURCES = bocu.el stem-english.el hanzi-py-table.el vi
+ 	 support-files/support-xszd.el					\
+ 	 support-files/support-zhongri.el				\
+ 	 support-files/support-zigen.el
+-ELCFILES = $(SOURCES:.el=.elc)
++ELCFILES =
+ EXTRA_DIST = $(SOURCES) lookup-compile.el lookup-logo.png
+ INSTALLFILES = $(SOURCES) $(ELCFILES) lookup-autoloads.el
+ CLEANFILES = $(ELCFILES)
+ MAINTAINERCLEANFILES = Makefile.in lookup-autoloads.el
+ 
+-all: lookup.elc lookup-autoloads.el
++all: lookup-autoloads.el
+ 
+ lookup.elc: $(SOURCES)
+ 	@$(EMACS) -batch -l lookup-compile.el -f lookup-bytecomp $(SOURCES)