diff --git a/lib/dns/include/dns/types.h b/lib/dns/include/dns/types.h
index a37eb55441..0192152b51 100644
--- a/lib/dns/include/dns/types.h
+++ b/lib/dns/include/dns/types.h
@@ -75,6 +75,7 @@ typedef struct dns_dispatchevent		dns_dispatchevent_t;
 typedef struct dns_tsig_key			dns_tsig_key_t;
 typedef struct dns_view				dns_view_t;
 typedef ISC_LIST(dns_view_t)			dns_viewlist_t;
+typedef struct dns_zone				dns_zone_t;
 typedef struct dns_a6context			dns_a6context_t;
 
 typedef enum {
diff --git a/lib/dns/include/dns/zone.h b/lib/dns/include/dns/zone.h
index 0c06519832..c70aa477cb 100644
--- a/lib/dns/include/dns/zone.h
+++ b/lib/dns/include/dns/zone.h
@@ -55,8 +55,6 @@ typedef enum {
 #define DNS_ZONE_O_DIALUP	0x00000008U	/* zone xfr over dialup link */
 #define DNS_ZONE_O_NOTIFY	0x00000010U	/* perform NOTIFY */
 
-typedef struct dns_zone dns_zone_t;
-
 ISC_LANG_BEGINDECLS
 
 /***