Entity generator with bundle inheritance doesn't create entity in right folder

I use doctrine ORM in a symfony 2 project

I have 2 bundles in my project : a "CommonBundle" and a "LesNouvellesBundle".
CommonBundle is parent of LesNouvellesBundle

I used the following command line : php app/console doctrine:generate:entity --entity="CommonBundle:Article"

The generated entity is in LesNouvellesBundle/Entity folder and its namespace is : namespace GMP\LesNouvellesBundle\Entity;