diff --git a/account_banking_mandate/migrations/9.0.1.0.0/post-migration.py b/account_banking_mandate/migrations/9.0.1.0.0/post-migration.py
new file mode 100644
index 000000000..59bc207fe
--- /dev/null
+++ b/account_banking_mandate/migrations/9.0.1.0.0/post-migration.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# © 2016 Sergio Teruel <sergio.teruel@tecnativa.com>
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+from openupgradelib import openupgrade
+
+
+@openupgrade.migrate(use_env=True)
+def migrate(env, version):
+    # Copy mandate_id to account_move_line
+    sql = """
+    UPDATE account_move_line aml
+    SET mandate_id = ai.mandate_id
+    FROM account_invoice ai
+    WHERE aml.invoice_id=ai.id
+    AND aml.invoice_id is not null
+    AND ai.mandate_id is not null;
+    """
+    openupgrade.logged_query(env.cr, sql)