diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 676e0d1..35ee608 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -72,4 +72,4 @@
 execute:frappe.delete_doc("DocType", "Payment to Invoice Matching Tool")
 execute:frappe.delete_doc("DocType", "Payment to Invoice Matching Tool Detail")
 execute:frappe.delete_doc("Page", "trial-balance") #2014-07-22
-erpnext.patches.v4_2.delete_old_print_formats
+erpnext.patches.v4_2.delete_old_print_formats #2014-07-29
diff --git a/erpnext/patches/v4_2/delete_old_print_formats.py b/erpnext/patches/v4_2/delete_old_print_formats.py
index 1456f95..75c3619 100644
--- a/erpnext/patches/v4_2/delete_old_print_formats.py
+++ b/erpnext/patches/v4_2/delete_old_print_formats.py
@@ -15,9 +15,9 @@
 	for fmt in old_formats:
 		# update property setter
 		for ps in frappe.db.sql_list("""select name from `tabProperty Setter`
-			where property_type='default_print_format' and value=%s""", fmt):
+			where property='default_print_format' and value=%s""", fmt):
 			ps = frappe.get_doc("Property Setter", ps)
 			ps.value = "Standard"
 			ps.save(ignore_permissions = True)
 
-		frappe.delete_doc("Print Format", fmt)
+		frappe.delete_doc_if_exists("Print Format", fmt)