diff --git a/erpnext/patches/jan_mar_2012/label_cleanup.py b/erpnext/patches/jan_mar_2012/label_cleanup.py
index 885c83f..a6aae9a 100644
--- a/erpnext/patches/jan_mar_2012/label_cleanup.py
+++ b/erpnext/patches/jan_mar_2012/label_cleanup.py
@@ -3,14 +3,14 @@
 	from webnotes.model import delete_doc
 	from webnotes.modules.module_manager import reload_doc
 
-	dt = [
+	dt = {
 		'selling':	['quotation', 'sales_order', 'quotation_detail', 'sales_order_detail'], 
 		'stock':	['delivery_note', 'delivery_note_detail', 'purchase_receipt', 'purchase_receipt_detail'],
 		'accounts': ['receivable_voucher', 'payable_voucher', 'rv_detail', 'pv_detail', 'rv_tax_detail', 'purchase_tax_detail'],
 		'buying':	['purchase_order', 'po_detail']
-	]
+	}
 	for m in dt:
-		for d in m:
+		for d in dt[m]:
 			reload_doc(m, 'doctype', d)
 
 
@@ -21,7 +21,7 @@
 
 	del_flds = {
 		'Sales Order Detail':	"'delivery_date', 'confirmation_date'", 
-		'Delivery Note':		"'supplier', 'supplier_address', 'purchase_receipt_no', 'purchase_order_no', 'transaction_date'"
+		'Delivery Note':		"'supplier', 'supplier_address', 'purchase_receipt_no', 'purchase_order_no', 'transaction_date'",
 		'Receivable Voucher':	"'voucher_date'",
 		'Payable Voucher':		"'voucher_date'",
 		'Purchase Receipt':		"'transaction_date'"
@@ -39,4 +39,4 @@
 		webnotes.conn.sql("delete from `tabDocField` where label in (%s) and parent = %s", (del_labels[d], d))
 
 	delete_doc('DocType', 'Update Delivery Date Detail')
-	delete_doc('DocType', 'Update Delivery Date'
+