diff --git a/htdocs/install/mysql/migration/4.0.0-5.0.0.sql b/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
index b5afac90e8c..508e64b33cb 100644
--- a/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
+++ b/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
@@ -115,3 +115,6 @@ create table llx_product_warehouse_properties
   desiredstock    		integer DEFAULT '0',
   import_key      		varchar(14)               -- Import key
 )ENGINE=innodb;
+
+ALTER TABLE llx_accounting_bookkeeping ADD COLUMN entity integer DEFAULT 1 NOT NULL;
+
diff --git a/htdocs/install/mysql/tables/llx_accounting_bookkeeping.sql b/htdocs/install/mysql/tables/llx_accounting_bookkeeping.sql
index 0f0c3d4ebf9..94761416a47 100644
--- a/htdocs/install/mysql/tables/llx_accounting_bookkeeping.sql
+++ b/htdocs/install/mysql/tables/llx_accounting_bookkeeping.sql
@@ -20,6 +20,7 @@
 CREATE TABLE llx_accounting_bookkeeping 
 (
   rowid				integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  entity			integer DEFAULT 1 NOT NULL,	  -- multi company id
   doc_date			date NOT NULL,
   doc_type			varchar(30) NOT NULL,	-- facture_client/reglement_client/facture_fournisseur/reglement_fournisseur
   doc_ref			varchar(300) NOT NULL,	-- facture_client/reglement_client/... reference number