diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index ee87afd..9a3c260 100755
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -830,7 +830,7 @@
 		frappe.throw(_("Please set a Supplier against the Items to be considered in the Purchase Order."))
 
 	for supplier in suppliers:
-    doc = get_mapped_doc("Sales Order", source_name, {
+    	doc = get_mapped_doc("Sales Order", source_name, {
 			"Sales Order": {
 				"doctype": "Purchase Order",
 				"field_no_map": [
@@ -1087,4 +1087,4 @@
 
 	if not total_produced_qty and frappe.flags.in_patch: return
 
-	frappe.db.set_value('Sales Order Item', sales_order_item, 'produced_qty', total_produced_qty)
\ No newline at end of file
+	frappe.db.set_value('Sales Order Item', sales_order_item, 'produced_qty', total_produced_qty)