diff --git a/erpnext/patches/v5_7/multi_currency.py b/erpnext/patches/v5_7/multi_currency.py
new file mode 100644
index 00000000000..52e4d0499f5
--- /dev/null
+++ b/erpnext/patches/v5_7/multi_currency.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.db.sql("""update `tabAccount` acc 
+		set currency = (select default_currency from tabCompany where name=acc.company)
+		where ifnull(currency, '') = ''""")
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