diff --git a/lib/dns/include/dns/result.h b/lib/dns/include/dns/result.h
index c2f5e5145e..3c20e078db 100644
--- a/lib/dns/include/dns/result.h
+++ b/lib/dns/include/dns/result.h
@@ -69,8 +69,9 @@ typedef unsigned int dns_result_t;
 #define DNS_R_NXRDATASET		42
 #define DNS_R_BADDB			43
 #define DNS_R_ZONECUT			44
+#define DNS_R_FORMERR			45
 
-#define DNS_R_LASTENTRY			44	/* Last entry on list. */
+#define DNS_R_LASTENTRY			45	/* Last entry on list. */
 
 #define DNS_R_UNEXPECTED		0xFFFFFFFFL
 
diff --git a/lib/dns/result.c b/lib/dns/result.c
index b3a02bd1d8..2f02e8d3a0 100644
--- a/lib/dns/result.c
+++ b/lib/dns/result.c
@@ -65,6 +65,7 @@ static char *text_table[DNS_R_LASTENTRY + 1] = {
 	"nxrdataset",				/* 42 */
 	"bad database",				/* 43 */
 	"zonecut",				/* 44 */
+	"format error in packet",		/* 45 */
 };
 
 char *