diff --git a/bin/named/server.c b/bin/named/server.c
index e39ad83b02..b2d4718622 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -6657,6 +6657,8 @@ configure_zone(const cfg_obj_t *config, const cfg_obj_t *zconfig,
 
 	if (zone_is_catz) {
 		dns_zone_catz_enable(zone, view->catzs);
+	} else if (dns_zone_catz_is_enabled(zone)) {
+		dns_zone_catz_disable(zone);
 	}
 
 	/*
diff --git a/lib/dns/include/dns/zone.h b/lib/dns/include/dns/zone.h
index e05b653d6c..d82d6eb0da 100644
--- a/lib/dns/include/dns/zone.h
+++ b/lib/dns/include/dns/zone.h
@@ -2635,6 +2635,26 @@ dns_zone_catz_enable(dns_zone_t *zone, dns_catz_zones_t *catzs);
  * \li	prior to calling, zone->catzs is NULL or is equal to 'catzs'
  */
 
+void
+dns_zone_catz_disable(dns_zone_t *zone);
+/*%<
+ * Disable zone as catalog zone, if it is one.
+ *
+ * Requires:
+ *
+ * \li	'zone' is a valid zone object
+ */
+
+bool
+dns_zone_catz_is_enabled(dns_zone_t *zone);
+/*%<
+ * Return a boolean indicating whether the zone is enabled as catalog zone.
+ *
+ * Requires:
+ *
+ * \li	'zone' is a valid zone object
+ */
+
 void
 dns_zone_catz_enable_db(dns_zone_t *zone, dns_db_t *db);
 /*%<
diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index 20d31386f0..92d23558c5 100644
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -1967,6 +1967,24 @@ dns_zone_catz_enable(dns_zone_t *zone, dns_catz_zones_t *catzs) {
 	UNLOCK_ZONE(zone);
 }
 
+void
+dns_zone_catz_disable(dns_zone_t *zone) {
+	REQUIRE(DNS_ZONE_VALID(zone));
+
+	LOCK_ZONE(zone);
+	if (zone->catzs != NULL) {
+		dns_catz_catzs_detach(&zone->catzs);
+	}
+	UNLOCK_ZONE(zone);
+}
+
+bool
+dns_zone_catz_is_enabled(dns_zone_t *zone) {
+	REQUIRE(DNS_ZONE_VALID(zone));
+
+	return (zone->catzs != NULL);
+}
+
 /*
  * If a zone is a catalog zone, attach it to update notification in database.
  */