diff --git a/install-dev/sql/db.sql b/install-dev/sql/db.sql
index 7924e752d..57e1ff988 100644
--- a/install-dev/sql/db.sql
+++ b/install-dev/sql/db.sql
@@ -464,6 +464,7 @@ CREATE TABLE `PREFIX_customer_message` (
   `ip_address` int(11) default NULL,
   `user_agent` varchar(128) default NULL,
   `date_add` datetime NOT NULL,
+  `private` TINYINT NOT NULL DEFAULT  '0',
   PRIMARY KEY  (`id_customer_message`),
   KEY `id_customer_thread` (`id_customer_thread`),
   KEY `id_employee` (`id_employee`)