diff --git a/utils/install-party/fete-du-slip b/utils/install-party/fete-du-slip
index a8635384..80ab4f96 100755
--- a/utils/install-party/fete-du-slip
+++ b/utils/install-party/fete-du-slip
@@ -35,6 +35,7 @@ iptables -t nat -A POSTROUTING -j MASQUERADE
 
 # Pas d'adm
 ip6tables -t filter -A FORWARD -o eth2 -j REJECT
+iptables -t filter -A FORWARD -o eth2 -j REJECT
 
 # On log les les paquets
 ip6tables -t mangle -A PREROUTING  -i eth1 -m state --state NEW -j LOG --log-prefix "LOG_ALL "