diff --git a/FIREFOX.md b/FIREFOX.md
index 4a90537..6e89c0b 100644
--- a/FIREFOX.md
+++ b/FIREFOX.md
@@ -3,7 +3,7 @@
 Tentative de compilation depuis pkgsrc...
 
 ```
-zap create-zone firefox-build
+zap create-zone -i 192.186.<x>.<x> -z firefox-build
 ```
 
 Installer :