diff --git a/converters/p5-Unicode-String/Makefile b/converters/p5-Unicode-String/Makefile
index b379af06e0ff..bc416af38332 100644
--- a/converters/p5-Unicode-String/Makefile
+++ b/converters/p5-Unicode-String/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	Unicode-String
 PORTVERSION=	2.07
+PORTREVISION=	1
 CATEGORIES=	converters perl5
 MASTER_SITES=	${MASTER_SITE_PERL_CPAN}
 MASTER_SITE_SUBDIR=	Unicode
@@ -15,7 +16,9 @@ PKGNAMEPREFIX=	p5-
 MAINTAINER=	ilia@cgu.chel.su
 COMMENT=	These are experimental Perl5 modules to handle various Unicode issues
 
+.if ${PERL_LEVEL} < 500800
 BUILD_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/MIME/Base64.pm:${PORTSDIR}/converters/p5-MIME-Base64
+.endif
 
 PERL_CONFIGURE=	yes