diff --git a/security/rubygem-devise-two-factor/Makefile b/security/rubygem-devise-two-factor/Makefile
index 5ce5201c1036..2bc4f3a1cf3b 100644
--- a/security/rubygem-devise-two-factor/Makefile
+++ b/security/rubygem-devise-two-factor/Makefile
@@ -1,25 +1,27 @@
 # Created by: Torsten Zuhlsdorff <ports@toco-domains.de>
 
 PORTNAME=	devise-two-factor
 PORTVERSION=	4.0.2
 CATEGORIES=	security rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Barebones two-factor authentication with Devise
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	rubygem-activesupport50>=0<7.1:devel/rubygem-activesupport50 \
 		rubygem-attr_encrypted>=1.3<4:security/rubygem-attr_encrypted \
 		rubygem-devise>=4.0<5:devel/rubygem-devise \
 		rubygem-railties50>=0<7.1:www/rubygem-railties50 \
 		rubygem-rotp>=6.0<7:devel/rubygem-rotp
 
 USES=		gem
 USE_RUBY=	yes
 
 NO_ARCH=	yes
 
+PORTSCOUT=	limit:^4\.
+
 .include <bsd.port.mk>