diff --git a/devel/p5-Compiler-Lexer/Makefile b/devel/p5-Compiler-Lexer/Makefile
index 59894d75b2c7..433d61c57629 100644
--- a/devel/p5-Compiler-Lexer/Makefile
+++ b/devel/p5-Compiler-Lexer/Makefile
@@ -1,22 +1,28 @@
 PORTNAME=	Compiler-Lexer
 PORTVERSION=	0.23
 CATEGORIES=	devel perl5
 MASTER_SITES=	CPAN
 PKGNAMEPREFIX=	p5-
 
 MAINTAINER=	perl@FreeBSD.org
 COMMENT=	Perl extension for lexical analyzer
 WWW=		https://metacpan.org/release/Compiler-Lexer
 
 LICENSE=	ART10 GPLv1+
 LICENSE_COMB=	dual
 
 BUILD_DEPENDS=	p5-Module-Build-XSUtil>0:devel/p5-Module-Build-XSUtil
 
 USES=		perl5
 USE_PERL5=	modbuild
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400091
+CFLAGS+=  -Dregister=
+.endif
+
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/auto/Compiler/Lexer/Lexer.so
 
 .include <bsd.port.mk>