diff --git a/gestion/gen_confs/firewall.py b/gestion/gen_confs/firewall.py
index e3218ec8..9e5f3946 100644
--- a/gestion/gen_confs/firewall.py
+++ b/gestion/gen_confs/firewall.py
@@ -1324,7 +1324,7 @@ class firewall_gordon(firewall_crans) :
         self.anim = anim('\tRègles spécifiques à gordon')
         iptables("-t mangle -A PREROUTING " +
                  "-d ! 138.231.136.0/21 " +
-                 ("-i %s " % eth_wifi) +
+                 ("-i %s " % self.eth_wifi) +
                  "-p tcp -m tcp --dport 80 " +
                  "-j MARK --set-xmark %s/0xffffffff" % conf_fw.mark['proxy'])
         print OK