diff --git a/erpnext/patches/v7_2/stock_uom_in_selling.py b/erpnext/patches/v7_2/stock_uom_in_selling.py
index 51d6ea7..875fc4e 100644
--- a/erpnext/patches/v7_2/stock_uom_in_selling.py
+++ b/erpnext/patches/v7_2/stock_uom_in_selling.py
@@ -9,5 +9,6 @@
 	doctype_list = ['Sales Order Item', 'Delivery Note Item', 'Quotation Item', 'Sales Invoice Item']
 
 	for doctype in doctype_list:
+		frappe.reload_doctype(doctype)
 		frappe.db.sql("""update `tab{doctype}` 
 		 		set uom = stock_uom, conversion_factor = 1, stock_qty = qty""".format(doctype=doctype))
\ No newline at end of file