diff --git a/mysql/migration/2.1.0-2.2.0.sql b/mysql/migration/2.1.0-2.2.0.sql
index c53c892bada..2115e648007 100644
--- a/mysql/migration/2.1.0-2.2.0.sql
+++ b/mysql/migration/2.1.0-2.2.0.sql
@@ -551,3 +551,4 @@ drop table if exists llx_soc_events;
 drop table if exists llx_todocomm.sql;
 drop table if exists llx_ventes.sql;
 drop table if exists llx_pointmort.sql;
+drop table if exists llx_birthday_alert;