diff --git a/erpnext/patches/v12_0/set_against_blanket_order_in_sales_and_purchase_order.py b/erpnext/patches/v12_0/set_against_blanket_order_in_sales_and_purchase_order.py
index 555d8ae7976..3fccbfa7003 100644
--- a/erpnext/patches/v12_0/set_against_blanket_order_in_sales_and_purchase_order.py
+++ b/erpnext/patches/v12_0/set_against_blanket_order_in_sales_and_purchase_order.py
@@ -1,7 +1,10 @@
 import frappe
 def execute():
+
+	frappe.reload_doc('selling', 'doctype', frappe.scrub('Sales Order Item'))
+	frappe.reload_doc('buying', 'doctype', frappe.scrub('Purchase Order Item'))
+
 	for doctype in ['Sales Order Item', 'Purchase Order Item']:
-		frappe.reload_doctype(doctype)
 		frappe.db.sql("""
 			UPDATE `tab{0}`
 			SET against_blanket_order = 1