Change this:
'rewrite' => array('slug' => 'nos-soins-et-services');
To this:
'rewrite' => array('slug' => 'nos-soins-et-services', 'with_front' => true);
Change this:
'rewrite' => array('slug' => 'nos-soins-et-services');
To this:
'rewrite' => array('slug' => 'nos-soins-et-services', 'with_front' => true);