diff --git a/dns/libasr/Makefile b/dns/libasr/Makefile
index fa93ec21d3a8..6bfbb6a51625 100644
--- a/dns/libasr/Makefile
+++ b/dns/libasr/Makefile
@@ -18,7 +18,9 @@ CONFLICTS=	libasr-devel-[0-9]*
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 
-USES=		libtool
+USES=		libtool ssl
 USE_LDCONFIG=	yes
 
+CFLAGS+=	-I${OPENSSLINC}
+
 .include <bsd.port.mk>