diff --git a/services.py b/services.py
index 106977e..6806dab 100644
--- a/services.py
+++ b/services.py
@@ -48,7 +48,7 @@ def services_to_args_macip(x):
         if isinstance(x, attributs.ipHostNumber):
             return [str(x)]
         else:
-            [ str(ip) for ip in x.parent.get('ipHostNumber',[]) ]
+            return [ str(ip) for ip in x.parent.get('ipHostNumber',[]) ]
     elif isinstance(x.parent, objets.proprio):
         return [ str(ip) for m in x.parent.machines() for ip in m.get('ipHostNumber',[])]
     else:
@@ -56,9 +56,9 @@ def services_to_args_macip(x):
 
 def services_to_args_port(x):
     if isinstance(x, attributs.ipHostNumber) or isinstance(x, attributs.ip6HostNumber):
-        [str(x)]
+        return [str(x)]
     else:
-        [ str(ip) for ip in x.parent.get('ipHostNumber',[]) ]
+        return [ str(ip) for ip in x.parent.get('ipHostNumber',[]) ]
 
 # Trouver comment faire le cas où on ajoute une redirection mail (il faut alors retourner un quadruplet "homedir,uidNumber,uid,mail")
 def services_to_args_home(x):
@@ -68,7 +68,7 @@ def services_to_args_home(x):
         proprio=x
     else:
         return []
-    if u'cransAccount' in [ str(o) for o in proprio.parent['objectClass']]:
+    if u'cransAccount' in [ str(o) for o in proprio['objectClass']]:
         return [ "%s,%s,%s" % (proprio['homeDirectory'][0],proprio['uidNumber'][0],proprio['uid'][0]) ]
     else:
         return []
@@ -80,7 +80,7 @@ def services_to_args_del_user(x):
         proprio=x
     else:
         return []
-    if u'cransAccount' in [ str(o) for o in proprio.parent['objectClass']]:
+    if u'cransAccount' in [ str(o) for o in proprio['objectClass']]:
         return [ "%s,%s" % (proprio['uid'][0], proprio['homeDirectory'][0]) ]
     else:
         return []
@@ -101,7 +101,7 @@ def services_to_args_mail_bienvenue(x):
         adh=x
     else:
         return []
-    if u'cransAccount' in [ str(o) for o in adh.parent['objectClass']]:
+    if u'cransAccount' in [ str(o) for o in adh['objectClass']]:
         return [ "%s" % adh['canonicalAlias'][0] ]
     else:
         return [ "%s" % adh['mail'][0] ]
@@ -120,7 +120,7 @@ def services_to_time_mail_bienvenue(x):
         adh=x
     else:
         return []
-    if u'cransAccount' in [ str(o) for o in adh.parent['objectClass']]:
+    if u'cransAccount' in [ str(o) for o in adh['objectClass']]:
         return [ time.time() + 660 ]
     else:
         return [ 0 ]