diff --git a/www/rubygem-acts-as-taggable-on/Makefile b/www/rubygem-acts-as-taggable-on/Makefile
index 1c1b4a800f16..68f672656f13 100644
--- a/www/rubygem-acts-as-taggable-on/Makefile
+++ b/www/rubygem-acts-as-taggable-on/Makefile
@@ -1,20 +1,20 @@
 PORTNAME=	acts-as-taggable-on
 PORTVERSION=	7.0.0
 PORTREVISION=	1
 CATEGORIES=	www rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	Tag a single model on several contexts
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 RUN_DEPENDS=	rubygem-activerecord61>=5.0<6.2:databases/rubygem-activerecord61
 
 USES=		gem
-USE_RUBY=	YES
+USE_RUBY=	yes
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>