1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 475b10c575b3..6684f7efbeeb 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -24,6 +24,7 @@ enum {
         ND_OPT_MTU = 5,                 /* RFC2461 */
         __ND_OPT_ARRAY_MAX,
         ND_OPT_ROUTE_INFO = 24,         /* RFC4191 */
+        ND_OPT_RDNSS = 25,              /* RFC5006 */
         __ND_OPT_MAX
 };