diff --git a/devel/opendht/Makefile b/devel/opendht/Makefile
index 4d8961e42c9a..58969a2c7602 100644
--- a/devel/opendht/Makefile
+++ b/devel/opendht/Makefile
@@ -1,53 +1,54 @@
 PORTNAME=	opendht
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.4.10
 CATEGORIES=	devel net
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Lightweight Distributed Hash Table implementation
 WWW=		https://github.com/savoirfairelinux/opendht/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-BUILD_DEPENDS=	boost-libs>0:devel/boost-libs \
+BUILD_DEPENDS=	${LOCALBASE}/include/asio.hpp:net/asio \
+		boost-libs>0:devel/boost-libs \
 		msgpack-cxx>0:devel/msgpack-cxx \
 		restinio>0:www/restinio
 LIB_DEPENDS=	libargon2.so:security/libargon2 \
 		libfmt.so:devel/libfmt \
 		libhttp_parser.so:www/http-parser \
 		libjsoncpp.so:devel/jsoncpp \
 		libnettle.so:security/nettle \
 		libgnutls.so:security/gnutls
 RUN_DEPENDS=	msgpack-cxx>0:devel/msgpack-cxx
 TEST_DEPENDS=	cppunit>0:devel/cppunit
 
 USES=		cmake:testing compiler:c++17-lang pathfix pkgconfig readline
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	savoirfairelinux
 USE_LDCONFIG=	yes
 
 LDFLAGS+=	-lcrypto
 
 CMAKE_OFF=	OPENDHT_STATIC
 CMAKE_TESTING_ON=	OPENDHT_TESTS # tests fail w/out explanation, see https://github.com/savoirfairelinux/opendht/issues/640
 
 PLIST_SUB=	SHL3=${PORTVERSION} SHL1=${PORTVERSION:R:R}
 
 OPTIONS_DEFINE=	PROXY_SERVER PROXY_CLIENT PUSH_NOTIFICATIONS DOCS
 
 PROXY_SERVER_DESC=		Enable DHT proxy server
 PROXY_CLIENT_DESC=		Enable DHT proxy client
 PUSH_NOTIFICATIONS_DESC=	Enable push notifications support
 
 PROXY_SERVER_CMAKE_BOOL=	OPENDHT_PROXY_SERVER
 PROXY_CLIENT_CMAKE_BOOL=	OPENDHT_PROXY_CLIENT
 PUSH_NOTIFICATIONS_CMAKE_BOOL=	OPENDHT_PUSH_NOTIFICATIONS
 
 PROXY_SERVER_LIB_DEPENDS=	libjsoncpp.so:devel/jsoncpp \
 				librestbed.so:www/restbed
 
 PORTDOCS=	*
 
 .include <bsd.port.mk>