diff --git a/easy_my_coop/models/partner.py b/easy_my_coop/models/partner.py
index 4ef8f65..af0569b 100644
--- a/easy_my_coop/models/partner.py
+++ b/easy_my_coop/models/partner.py
@@ -75,7 +75,7 @@ class ResPartner(models.Model):
         for partner in self:
             share_type = ''
             for line in partner.share_ids:
-                share_type = line.share_product_id.default_code
+                share_type = line.share_product_id.id
             if share_type:
                 partner.cooperator_type = share_type