diff --git a/contract/models/contract.py b/contract/models/contract.py
index 481a64c9a..85272ae2b 100644
--- a/contract/models/contract.py
+++ b/contract/models/contract.py
@@ -209,7 +209,8 @@ class ContractContract(models.Model):
                     field.name in self.NO_SYNC,
                 )
             ):
-                self[field_name] = self.contract_template_id[field_name]
+                if self.contract_template_id[field_name]:
+                    self[field_name] = self.contract_template_id[field_name]
 
     @api.onchange('partner_id')
     def _onchange_partner_id(self):