diff --git a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
index 7bf238da6b9..82a6bdec3dc 100644
--- a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
+++ b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
@@ -78,6 +78,9 @@ INSERT INTO llx_c_email_templates (entity, module, type_template, lang, private,
 
 
 -- v15
+
+ALTER TABLE llx_c_holiday_types CHANGE COLUMN newByMonth newbymonth double(8,5) DEFAULT 0 NOT NULL;
+
 ALTER TABLE llx_product ADD COLUMN mandatory_period tinyint NULL DEFAULT 0;
 
 ALTER TABLE llx_holiday ADD COLUMN date_approve   DATETIME DEFAULT NULL;