diff --git a/wizard/scop_bordereau_refund_wizard.py b/wizard/scop_bordereau_refund_wizard.py
index 1fc5221f9a41615b2eba86f83b50ade1e2a29728..7999449bb0f464d14717f7f026ef2ab2c736f902 100644
--- a/wizard/scop_bordereau_refund_wizard.py
+++ b/wizard/scop_bordereau_refund_wizard.py
@@ -81,6 +81,7 @@ class ScopBordereauRefundWizard(models.TransientModel):
         ur_hdf = self.env.ref("cgscop_partner.riga_14232").id
         ur_idf = self.env.ref("cgscop_partner.riga_14231").id
         ur_med = self.env.ref("cgscop_partner.riga_14243").id
+        product_ur = False
         if bordereau_id.partner_id.ur_id.id == ur_hdf:
             product_ur = self.env.company.contribution_hdf_id
         elif bordereau_id.partner_id.ur_id.id == ur_idf: