diff --git a/gestion/midtools.py b/gestion/midtools.py
index 4c66cb89..728f78e1 100755
--- a/gestion/midtools.py
+++ b/gestion/midtools.py
@@ -76,6 +76,7 @@ class Mid(object):
         self.mid -= int(iptools.param(config.NETs[self.type][0],
             True)['network'])
         self.reste = self.mid & 0x7ff
+        return self.mid
     #    if self.type == 'ens': # Inutile pour l'instant
     #        self.reste &= 0xff
 
@@ -100,4 +101,4 @@ class Mid(object):
         ip = config.prefix['subnet'][0].split(":/")[0]
         ip += hex(self.mid)[2:]
         ip += "::/64"
-
+        return ip