diff --git a/htdocs/install/mysql/migration/20.0.0-21.0.0.sql b/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
index 19a8b90a04c..fcf1f4bcc98 100644
--- a/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
+++ b/htdocs/install/mysql/migration/20.0.0-21.0.0.sql
@@ -398,3 +398,7 @@ ALTER TABLE llx_user MODIFY COLUMN signature LONGTEXT;
 ALTER TABLE llx_societe_rib DROP INDEX uk_societe_rib;
 ALTER TABLE llx_societe_rib ADD COLUMN entity integer DEFAULT 1 NOT NULL AFTER rowid;
 ALTER TABLE llx_societe_rib ADD UNIQUE INDEX uk_societe_rib(entity, label, fk_soc);
+
+ALTER TABLE llx_holiday_config DROP INDEX idx_holiday_config;
+ALTER TABLE llx_holiday_config ADD COLUMN entity integer DEFAULT 1 NOT NULL AFTER rowid;
+ALTER TABLE llx_holiday_config ADD UNIQUE INDEX idx_holiday_config (entity, name);
diff --git a/htdocs/install/mysql/tables/llx_holiday_config.key.sql b/htdocs/install/mysql/tables/llx_holiday_config.key.sql
index c1b18e760d1..6591351c940 100644
--- a/htdocs/install/mysql/tables/llx_holiday_config.key.sql
+++ b/htdocs/install/mysql/tables/llx_holiday_config.key.sql
@@ -16,5 +16,5 @@
 --
 -- ===================================================================
 
-ALTER TABLE llx_holiday_config ADD UNIQUE INDEX idx_holiday_config (name);
+ALTER TABLE llx_holiday_config ADD UNIQUE INDEX idx_holiday_config (entity, name);
 
diff --git a/htdocs/install/mysql/tables/llx_holiday_config.sql b/htdocs/install/mysql/tables/llx_holiday_config.sql
index cf0002dff7d..3502ab4cc9f 100644
--- a/htdocs/install/mysql/tables/llx_holiday_config.sql
+++ b/htdocs/install/mysql/tables/llx_holiday_config.sql
@@ -18,8 +18,9 @@
 
 CREATE TABLE llx_holiday_config 
 (
-rowid    integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
-name     VARCHAR(128) NOT NULL,
-value    TEXT NULL
+rowid	integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+entity	integer DEFAULT 1 NOT NULL,		-- Multi company id
+name	VARCHAR(128) NOT NULL,
+value	TEXT NULL
 ) 
 ENGINE=innodb;