diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index 0c5188a4fe..09dc9a9932 100755
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -509,10 +509,12 @@ def make_material_request(source_name, target_doc=None):
 		doc.material_request_type = "Purchase"
 
 	def update_item(source, target, source_parent):
+		# qty is for packed items, because packed items don't have stock_qty field
+		qty = source.get("stock_qty") or source.get("qty")
 		target.project = source_parent.project
-		target.qty = source.stock_qty - requested_item_qty.get(source.name, 0)
+		target.qty = qty - requested_item_qty.get(source.name, 0)
 		target.conversion_factor = 1
-		target.stock_qty = source.stock_qty - requested_item_qty.get(source.name, 0)
+		target.stock_qty = qty - requested_item_qty.get(source.name, 0)
 
 	doc = get_mapped_doc("Sales Order", source_name, {
 		"Sales Order": {