diff --git a/biology/htslib/Makefile b/biology/htslib/Makefile
index d326ae2b0b65..ec7ab0ab4d8d 100644
--- a/biology/htslib/Makefile
+++ b/biology/htslib/Makefile
@@ -1,39 +1,39 @@
 # Created by: Reed A. Cartwright <cartwright@asu.edu>
 
 PORTNAME=	htslib
 DISTVERSION=	1.13
 CATEGORIES=	biology devel
 # Github generated distfiles are incomplete, so use custom tarball
 MASTER_SITES=	https://github.com/samtools/htslib/releases/download/${DISTVERSION}/
 
 MAINTAINER=	jwb@FreeBSD.org
 COMMENT=	C library for high-throughput sequencing data formats
 
 LICENSE=	BSD3CLAUSE MIT
 LICENSE_COMB=	multi
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libdeflate.so:archivers/libdeflate
 TEST_DEPENDS=	bash:shells/bash
 
-USES=		autoreconf gmake localbase pathfix perl5 shebangfix tar:bzip2
+USES=		autoreconf cpe gmake localbase pathfix perl5 shebangfix tar:bzip2
 USE_PERL5=	test
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=		yes
 PATHFIX_MAKEFILEIN=	Makefile
 SHEBANG_FILES=		test/*.pl
 
 OPTIONS_DEFINE=		CURL
 OPTIONS_DEFAULT=	CURL
 
 CURL_DESC=		Use libcurl for network file access (HTTPS and S3 support).
 CURL_USES=		ssl
 CURL_LIB_DEPENDS=	libcurl.so:ftp/curl
 CURL_CONFIGURE_ENABLE=	libcurl
 
 PLIST_SUB=	PORTVERSION="${PORTVERSION}"
 
 TEST_TARGET=	test
 
 .include <bsd.port.mk>