diff --git a/biology/cd-hit/Makefile b/biology/cd-hit/Makefile
index 4c27a9175716..e6e811ff7b26 100644
--- a/biology/cd-hit/Makefile
+++ b/biology/cd-hit/Makefile
@@ -1,37 +1,37 @@
 PORTNAME=		cd-hit
 DISTVERSIONPREFIX=	V
 DISTVERSION=		4.8.1
-PORTREVISION=		2
+PORTREVISION=		3
 CATEGORIES=		biology
 
 MAINTAINER=	jwb@FreeBSD.org
 COMMENT=	Clustering and comparing protein or nucleotide sequences
 WWW=		http://weizhong-lab.ucsd.edu/cd-hit/
 
 LICENSE=	GPLv2
 
 USES=		gmake shebangfix
 USE_GITHUB=	yes
 
 GH_ACCOUNT=	weizhongli
 GH_PROJECT=	cdhit
 SHEBANG_FILES=	${WRKSRC}/*.pl
 
+.if exists(/usr/include/omp.h)
 MAKE_FLAGS=	openmp=yes
-
-.if !exists(/usr/include/omp.h)
-USES+=		compiler:gcc-c++11-lib
+.else
+MAKE_FLAGS=	openmp=no
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} \
 		-e 's|/bin/bash|${LOCALBASE}/bin/bash|g' \
 		${WRKSRC}/cd-hit-2d-para.pl \
 		${WRKSRC}/cd-hit-para.pl
 
 post-install:
 	@cd ${STAGEDIR}${PREFIX}/bin && \
 		${STRIP_CMD} cd-hit cd-hit-2d cd-hit-454 \
 		cd-hit-div cd-hit-est cd-hit-est-2d
 
 .include <bsd.port.mk>