Index: head/security/heimdal/Makefile
===================================================================
--- head/security/heimdal/Makefile
+++ head/security/heimdal/Makefile
@@ -16,6 +16,8 @@
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BUILD_DEPENDS=	p5-JSON>=0:converters/p5-JSON
+
 CONFLICTS=	krb4-[0-9]* krb5-[0-9]* krb5-maint-[0-9]* srp-[0-9]* \
 		wu-ftpd-[0-9]* wu-ftpd+ipv6-[0-9]*