diff --git a/tiramisu/option.py b/tiramisu/option.py
index 74f9899..6fd0568 100644
--- a/tiramisu/option.py
+++ b/tiramisu/option.py
@@ -922,6 +922,11 @@ class NetmaskOption(Option):
                                         val_netmask, self._name))
 
 
+class BroadcastOption(Option):
+    def _validate(self, value):
+        IP('{0}/32'.format(value))
+
+
 class DomainnameOption(Option):
     "represents the choice of a domain name"
     __slots__ = ('_type', '_allow_ip')
diff --git a/translations/fr/tiramisu.po b/translations/fr/tiramisu.po
index 66623c1..e1cc0b3 100644
--- a/translations/fr/tiramisu.po
+++ b/translations/fr/tiramisu.po
@@ -225,7 +225,7 @@ msgstr "nom de l'option dupliqué : {0}"
 
 #: tiramisu/option.py:998
 msgid "unknown Option {0} in OptionDescription {1}"
-msgstr "Option {} inconnue pour l'OptionDescription{}"
+msgstr "Option {0} inconnue pour l'OptionDescription {1}"
 
 #: tiramisu/option.py:1049
 msgid "duplicate option: {0}"