diff --git a/biology/iolib/Makefile b/biology/iolib/Makefile
index bb0889a362d5..37ef96698e30 100644
--- a/biology/iolib/Makefile
+++ b/biology/iolib/Makefile
@@ -1,25 +1,28 @@
 PORTNAME=	io_lib
 DISTVERSION=	1-15-1
 CATEGORIES=	biology
 MASTER_SITES=	https://github.com/jkbonfield/${PORTNAME}/releases/download/${DISTNAME:S/./-/g}/
 DISTNAME=	${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	alven@FreeBSD.org
 COMMENT=	General purpose trace file (and Experiment File) reading interface
 WWW=		https://staden.sourceforge.net/ \
 		https://github.com/jkbonfield/io_lib/
 
 LICENSE=	BSD3CLAUSE
 
 LIB_DEPENDS=	libcurl.so:ftp/curl
 
 USES=		autoreconf gmake libtool
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 
 INSTALL_TARGET=	install-strip
 
 CONFLICTS_INSTALL=	filters scramble # bin/scramble
 
+pre-configure:
+	cd ${WRKSRC}/htscodecs && ${AUTORECONF} -f -i
+
 .include <bsd.port.mk>