diff --git a/devel/rubygem-oj/Makefile b/devel/rubygem-oj/Makefile
index 1c77f02b5d6b..156888b18cd7 100644
--- a/devel/rubygem-oj/Makefile
+++ b/devel/rubygem-oj/Makefile
@@ -1,22 +1,23 @@
 PORTNAME=	oj
 PORTVERSION=	3.13.23
+PORTREVISION=	1
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Fast JSON parser and serializer
 WWW=		https://www.ohler.com/oj/
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		gem
 USE_RUBY=	yes
 
 # TODO: find a better way to do this
 # Copy all header file, as it is required by rubygem-oj-introspect
 post-install:
 	cd ${WRKSRC}/ext/oj && ${FIND} * -name "*.h" -type f -exec ${INSTALL_DATA} {} "${STAGEDIR}${PREFIX}/${GEMS_DIR}/${PORTNAME}-${PORTVERSION}/ext/oj/{}" \;
 
 
 .include <bsd.port.mk>