diff --git a/lib/dns/include/dns/zone.h b/lib/dns/include/dns/zone.h
index 70b79471a4..e6cbb76372 100644
--- a/lib/dns/include/dns/zone.h
+++ b/lib/dns/include/dns/zone.h
@@ -593,17 +593,6 @@ dns_zone_markdirty(dns_zone_t *zone);
  *\li	'zone' to be a valid zone.
  */
 
-void
-dns_zone_expire(dns_zone_t *zone);
-/*%<
- *	Mark the zone as expired.  If the zone requires dumping cause it to
- *	be initiated.  Set the refresh and retry intervals to there default
- *	values and unload the zone.
- *
- * Require
- *\li	'zone' to be a valid zone.
- */
-
 void
 dns_zone_refresh(dns_zone_t *zone);
 /*%<
diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index a9acedda42..546de131e3 100644
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -11762,15 +11762,6 @@ again:
 	UNLOCK_ZONE(zone);
 }
 
-void
-dns_zone_expire(dns_zone_t *zone) {
-	REQUIRE(DNS_ZONE_VALID(zone));
-
-	LOCK_ZONE(zone);
-	zone_expire(zone);
-	UNLOCK_ZONE(zone);
-}
-
 static void
 zone_expire(dns_zone_t *zone) {
 	dns_db_t *db = NULL;