diff --git a/agreement_sale/models/sale_order.py b/agreement_sale/models/sale_order.py
index e0ae0706..1d1e64ac 100644
--- a/agreement_sale/models/sale_order.py
+++ b/agreement_sale/models/sale_order.py
@@ -11,7 +11,7 @@ class SaleOrder(models.Model):
         'agreement',
         string="Agreement Template",
         domain="[('is_template', '=', True)]")
-    agreement_id = fields.Many2one('agreement', string="Agreement")
+    agreement_id = fields.Many2one('agreement', string="Agreement", copy=False)
 
     @api.multi
     def _action_confirm(self):
diff --git a/agreement_sale/views/agreement.xml b/agreement_sale/views/agreement.xml
index d7a45551..cf2faf8a 100644
--- a/agreement_sale/views/agreement.xml
+++ b/agreement_sale/views/agreement.xml
@@ -12,7 +12,7 @@
             <page name="signature" position="after">
                 <page name="sales" string="Sales">
                     <group>
-                        <group id="sale_left">
+                        <group id="sale-left">
                             <field name="sale_id" readonly="1"/>
                         </group>
                         <group id="sale-right"/>