diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.json b/erpnext/buying/doctype/purchase_order/purchase_order.json
index c99481e..923a3ed 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.json
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.json
@@ -120,7 +120,7 @@
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
-   "depends_on": "eval:doc.supplier && doc.docstatus===0 && !(doc.items && doc.items.length)", 
+   "depends_on": "eval:doc.supplier && doc.docstatus===0 && (!(doc.items && doc.items.length) || (doc.items.length==1 && !doc.items[0].item_code))", 
    "fieldname": "get_items_from_open_material_requests", 
    "fieldtype": "Button", 
    "hidden": 0, 
@@ -2689,13 +2689,14 @@
  "hide_toolbar": 0, 
  "icon": "icon-file-text", 
  "idx": 105, 
+ "image_view": 0, 
  "in_create": 0, 
  "in_dialog": 0, 
  "is_submittable": 1, 
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2016-05-23 15:20:59.954292", 
+ "modified": "2016-07-07 11:32:05.248626", 
  "modified_by": "Administrator", 
  "module": "Buying", 
  "name": "Purchase Order",