diff --git a/odoo/fields.py b/odoo/fields.py
index 381034dc0f2..45c959ecbc6 100644
--- a/odoo/fields.py
+++ b/odoo/fields.py
@@ -3810,6 +3810,8 @@ class Many2many(_RelationalMulti):
             """.format(rel=self.relation, id1=self.column1, id2=self.column2)
             cr.execute(query, ['RELATION BETWEEN %s AND %s' % (model._table, comodel._table)])
             _schema.debug("Create table %r: m2m relation between %r and %r", self.relation, model._table, comodel._table)
+            model.pool.post_init(self.update_db_foreign_keys, model)
+            return True
 
         model.pool.post_init(self.update_db_foreign_keys, model)