diff --git a/ext/custom-addons/dp_custom/models/sale.py b/ext/custom-addons/dp_custom/models/sale.py
index ad3c91e9..cc12b979 100644
--- a/ext/custom-addons/dp_custom/models/sale.py
+++ b/ext/custom-addons/dp_custom/models/sale.py
@@ -67,8 +67,9 @@ class SaleOrder(models.Model):
     @api.multi
     def _pg9_call(self) :
         for record in self :
-            xref = 'xref:'+record.origin
-            record.pg9_call = 'http://localhost:9531/pg9/order/' + xref
+            if record.origin != False:
+                xref = 'xref:'+record.origin
+                record.pg9_call = 'http://localhost:9531/pg9/order/' + xref
 
     # end def _pg9_call