diff --git a/modules/purchase_trade/lot.py b/modules/purchase_trade/lot.py
index 61179b7..4d00b54 100755
--- a/modules/purchase_trade/lot.py
+++ b/modules/purchase_trade/lot.py
@@ -3343,8 +3343,12 @@ class ContractDetail(ModelView):
     ], 'Price type', required=True)
     currency_unit = fields.Selection('get_currency_unit',string="Curr/Unit")
     reference = fields.Char("Reference")
-    from_location = fields.Many2One('stock.location',"From location")
-    to_location = fields.Many2One('stock.location',"To location")
+    from_location = fields.Many2One(
+        'stock.location', "From location",
+        domain=[('type', 'in', ['storage', 'supplier'])])
+    to_location = fields.Many2One(
+        'stock.location', "To location",
+        domain=[('type', 'in', ['storage', 'customer'])])
     payment_term = fields.Many2One('account.invoice.payment_term',"Payment Term", required=True)
 
     @classmethod