diff --git a/lib/dns/include/dns/result.h b/lib/dns/include/dns/result.h
index 59343b8aed..9c44c225c9 100644
--- a/lib/dns/include/dns/result.h
+++ b/lib/dns/include/dns/result.h
@@ -41,8 +41,10 @@ typedef unsigned int dns_result_t;
 #define DNS_R_EXTRADATA			18
 #define DNS_R_TEXTTOLONG		19
 #define DNS_R_RANGE			20
+#define DNS_R_EXISTS			21
+#define DNS_R_NOTFOUND			22
 
-#define DNS_R_LASTENTRY			20	/* Last entry on list. */
+#define DNS_R_LASTENTRY			22	/* Last entry on list. */
 
 #define DNS_R_UNEXPECTED		0xFFFFFFFFL
 
diff --git a/lib/dns/result.c b/lib/dns/result.c
index c38158dd13..7efc1db220 100644
--- a/lib/dns/result.c
+++ b/lib/dns/result.c
@@ -41,6 +41,8 @@ static char *text_table[DNS_R_LASTENTRY + 1] = {
 	"extra input data",			/* 18 */
 	"text too long",			/* 19 */
 	"out of range",				/* 20 */
+	"already exists",			/* 21 */
+	"not found",				/* 22 */
 };
 
 char *