diff --git a/htdocs/install/mysql/migration/3.5.0-3.6.0.sql b/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
index eb02007581d..1a2a9bc9c75 100755
--- a/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
+++ b/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
@@ -957,3 +957,5 @@ INSERT INTO llx_accountingaccount (fk_pcg_version, pcg_type, pcg_subtype, accoun
 INSERT INTO llx_accountingaccount (fk_pcg_version, pcg_type, pcg_subtype, account_number, account_parent, label, active) VALUE ('PCMN-BASE', 'PROD', 'XXXXXX', '793', '79', 'Perte à reporter', '1');
 INSERT INTO llx_accountingaccount (fk_pcg_version, pcg_type, pcg_subtype, account_number, account_parent, label, active) VALUE ('PCMN-BASE', 'PROD', 'XXXXXX', '794', '79', 'Intervention d''associés (ou du propriétaire) dans la perte', '1');
 
+
+ALTER TABLE llx_projet_task ADD COLUMN  entity integer DEFAULT 1 NOT NULL ref;
diff --git a/htdocs/install/mysql/tables/llx_projet_task.sql b/htdocs/install/mysql/tables/llx_projet_task.sql
index 1b73cc71781..98c8845974e 100644
--- a/htdocs/install/mysql/tables/llx_projet_task.sql
+++ b/htdocs/install/mysql/tables/llx_projet_task.sql
@@ -21,6 +21,7 @@ create table llx_projet_task
 (
   rowid					integer AUTO_INCREMENT PRIMARY KEY,
   ref 					varchar(50),
+  entity				integer DEFAULT 1 NOT NULL,	-- multi company id
   fk_projet				integer NOT NULL,
   fk_task_parent		integer DEFAULT 0 NOT NULL,
   datec					datetime,						-- date creation