diff --git a/frappe/patches/v8_1/delete_custom_docperm_if_doctype_not_exists.py b/frappe/patches/v8_1/delete_custom_docperm_if_doctype_not_exists.py
index a46db68a16..18576a3029 100644
--- a/frappe/patches/v8_1/delete_custom_docperm_if_doctype_not_exists.py
+++ b/frappe/patches/v8_1/delete_custom_docperm_if_doctype_not_exists.py
@@ -2,6 +2,6 @@ import frappe
 
 def execute():
 	frappe.db.sql("""delete from `tabCustom DocPerm`
-		where parent not in ( select name from `tabDoctype` )
+		where parent not in ( select name from `tabDocType` )
 			and parent not in ( select name from `tabCustom Doctype` )
 	""")