[CentOS] Centos 6: language mess with ssh

When I connect through SSH to my Centos 6 box, language are mixed: connection is in english but password change dialog is in french. Example:

$ ssh aa@quercy You are required to change your password immediately (root enforced) Last login: Fri Oct 30 11:41:31 2015 from quercy WARNING: Your password has expired. You must change your password now and login again! Changement de mot de passe pour l'utilisateur aa. Nouveau mot de passe : Retapez le nouveau mot de passe : (Current) Password: passwd : mise à jour réussie de tous les jetons d'authentification. Connection to quercy closed.

I tried: "LANG=C ssh aa@quercy" and I get the same mess.

Is it possible to get password change dialog in english ?