diff --git a/db.fff.community b/db.fff.community
index 2e57735..f621cf9 100644
--- a/db.fff.community
+++ b/db.fff.community
@@ -6,6 +6,7 @@ fff.community.         3600 IN SOA    dnsprim.fff.community. franken.freifunk.ne
 @                           IN NS     aquarius.gw.fff.community.
 @                           IN NS     fff-gw-m1.fff.community.
 @                           IN NS     dnsprim.fff.community.
+@                           IN NS     sis-fff-gw1.gw.fff.community.
 
 ; .extern zone
 extern                      IN NS     dns.herpf.fff.community.