diff --git a/gestion/gen_confs/firewall4.py b/gestion/gen_confs/firewall4.py
index ace85c46..da1784fa 100755
--- a/gestion/gen_confs/firewall4.py
+++ b/gestion/gen_confs/firewall4.py
@@ -2,12 +2,16 @@
 # -*- coding: utf-8 -*-
 
 
-
-import sys
 import os
+import sys
 sys.path.append('/usr/scripts/gestion')
 sys.path.append('/usr/scripts/lc_ldap')
 
+if os.getuid() != 0:
+    from affich_tools import coul
+    sys.stderr.write(coul("Il faut être root pour utiliser le firewall\n", 'gras'))
+    sys.exit(1)
+
 from config import NETs, blacklist_sanctions, blacklist_sanctions_soft, mac_komaz, mac_titanic
 
 import config.firewall