diff --git a/htdocs/hrm/establishment/card.php b/htdocs/hrm/establishment/card.php
index 11179d218f869d5784828b01e4bd73e08c543dd3..9917113ff396b61899e099ecc8a31640f59d28c6 100644
--- a/htdocs/hrm/establishment/card.php
+++ b/htdocs/hrm/establishment/card.php
@@ -48,6 +48,10 @@ foreach ($tmpstatus2label as $key => $val) $status2label[$key]=$langs->trans($va
 
 $object = new Establishment($db);
 
+// Load object
+include DOL_DOCUMENT_ROOT.'/core/actions_fetchobject.inc.php';  // Must be include, not include_once
+
+
 /*
  * Actions
  */
@@ -128,7 +132,8 @@ else if ($action == 'update')
 			$error ++;
 		}
 
-		if (empty($error)) {
+		if (empty($error)) 
+		{
 			$object->name 			= GETPOST('name', 'alpha');
 			$object->address 		= GETPOST('address', 'alpha');
 			$object->zip 			= GETPOST('zipcode', 'alpha');
diff --git a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
index 1309c1dc2255b66a2410390afeee5775e040dc1b..cbc0dd75a56f253183334e49fddb2538865d5aa0 100644
--- a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
+++ b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
@@ -537,3 +537,7 @@ INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (178,
 INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (178, '17804', 'Sociedad Civil', 1);
 INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (178, '17805', 'Sociedad Anónima', 1);
 
+
+-- VMYSQL4.1 ALTER TABLE llx_establishment CHANGE COLUMN fk_user_mod fk_user_mod integer NULL;
+-- VPGSQL8.2 ALTER TABLE llx_establishment ALTER COLUMN fk_user_mod DROP NOT NULL;
+
diff --git a/htdocs/install/mysql/tables/llx_establishment.sql b/htdocs/install/mysql/tables/llx_establishment.sql
index fcf57ac28b63759c9a0e1e3bdd728166c482d419..667d512762d97ced085c835ae028d02e9c29c8ff 100644
--- a/htdocs/install/mysql/tables/llx_establishment.sql
+++ b/htdocs/install/mysql/tables/llx_establishment.sql
@@ -33,7 +33,7 @@ CREATE TABLE llx_establishment (
   profid3			varchar(20),
   phone				varchar(20),
   fk_user_author 	integer NOT NULL,
-  fk_user_mod		integer NOT NULL,
+  fk_user_mod		integer,
   datec				datetime NOT NULL,
   tms				timestamp NOT NULL,
   status            tinyint DEFAULT 1