diff --git a/lib/dns/xfrin.c b/lib/dns/xfrin.c
index 20d6081d48..4be8dc0f44 100644
--- a/lib/dns/xfrin.c
+++ b/lib/dns/xfrin.c
@@ -879,6 +879,8 @@ dns_xfrin_create(dns_zone_t *zone, dns_rdatatype_t xfrtype,
 
 	REQUIRE(xfrp != NULL && *xfrp == NULL);
 	REQUIRE(isc_sockaddr_getport(primaryaddr) != 0);
+	REQUIRE(zone != NULL);
+	REQUIRE(dns_zone_getview(zone) != NULL);
 
 	loop = dns_zone_getloop(zone);