diff --git a/lib/dns/include/dns/result.h b/lib/dns/include/dns/result.h
index df79bca6c4..2488afed05 100644
--- a/lib/dns/include/dns/result.h
+++ b/lib/dns/include/dns/result.h
@@ -84,8 +84,9 @@ typedef isc_result_t dns_result_t;	/* XXXRTH for legacy use only */
 #define DNS_R_ZONECUT			(ISC_RESULTCLASS_DNS + 34)
 #define DNS_R_BADZONE			(ISC_RESULTCLASS_DNS + 35) /* XXX MPA*/
 #define DNS_R_MOREDATA			(ISC_RESULTCLASS_DNS + 36)
+#define DNS_R_UPTODATE			(ISC_RESULTCLASS_DNS + 37)
 
-#define DNS_R_NRESULTS			37	/* Number of results */
+#define DNS_R_NRESULTS			38	/* Number of results */
 
 /*
  * DNS wire format rcodes
diff --git a/lib/dns/result.c b/lib/dns/result.c
index 25fae4b376..847f236bc8 100644
--- a/lib/dns/result.c
+++ b/lib/dns/result.c
@@ -64,6 +64,7 @@ static char *text[DNS_R_NRESULTS] = {
 	"zonecut",				/* 34 */
 	"bad zone",				/* 35 */
 	"more data",				/* 36 */
+	"up to date",				/* 37 */
 };
 
 static char *rcode_text[DNS_R_NRCODERESULTS] = {