diff --git a/utils/he_ipv6/radvd.py b/utils/he_ipv6/radvd.py
index e52b727..fcd26dd 100644
--- a/utils/he_ipv6/radvd.py
+++ b/utils/he_ipv6/radvd.py
@@ -108,10 +108,7 @@ class RADVDConf(object):
                   '\t\tAdvAutonomous on;\n'
                   '\t\tAdvRouterAddr off;\n'
                   '\t}};\n')
-    tpl_rdnss = ('\tRDNSS {client_ip} {{\n'
-                 '\t\tAdvRDNSSOpen on;\n'
-                 '\t\tAdvRDNSSPreference 2;\n'
-                 '\t}};\n')
+    tpl_rdnss = ('\tRDNSS {client_ip} {{}};\n')
 
     def __init__(self, cfg = None):
         if not cfg: