diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 1d6fb0c..7cb236e 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -15,6 +15,7 @@
 /*
  *	Changes:
  *
+ *	Alexey I. Froloff		:	RFC6106 (DNSSL) support
  *	Pierre Ynard			:	export userland ND options
  *						through netlink (RDNSS support)
  *	Lars Fenneberg			:	fixed MTU setting on receipt
@@ -228,7 +229,8 @@
 
 static inline int ndisc_is_useropt(struct nd_opt_hdr *opt)
 {
-	return opt->nd_opt_type == ND_OPT_RDNSS;
+	return opt->nd_opt_type == ND_OPT_RDNSS ||
+		opt->nd_opt_type == ND_OPT_DNSSL;
 }
 
 static struct nd_opt_hdr *ndisc_next_useropt(struct nd_opt_hdr *cur,