diff --git a/erpnext/patches/v12_0/purchase_receipt_status.py b/erpnext/patches/v12_0/purchase_receipt_status.py
index 1a99b31..459221e 100644
--- a/erpnext/patches/v12_0/purchase_receipt_status.py
+++ b/erpnext/patches/v12_0/purchase_receipt_status.py
@@ -19,6 +19,9 @@
 	logger.info("purchase_receipt_status: begin patch, PR count: {}"
 				.format(len(affected_purchase_receipts)))
 
+	frappe.reload_doc("stock", "doctype", "Purchase Receipt")
+	frappe.reload_doc("stock", "doctype", "Purchase Receipt Item")
+
 
 	for pr in affected_purchase_receipts:
 		pr_name = pr[0]