diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 0f0a17fe365..7b46531e2a9 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1961,11 +1961,11 @@ class Form
 
 		// Forge request to select users
 		$sql = "SELECT DISTINCT u.rowid, u.lastname as lastname, u.firstname, u.statut as status, u.login, u.admin, u.entity, u.photo";
-		if (!empty($conf->multicompany->enabled) && $conf->entity == 1 && $user->admin && !$user->entity) {
+		if (isModEnabled('multicompany') && $conf->entity == 1 && $user->admin && !$user->entity) {
 			$sql .= ", e.label";
 		}
 		$sql .= " FROM ".$this->db->prefix()."user as u";
-		if (!empty($conf->multicompany->enabled) && $conf->entity == 1 && $user->admin && !$user->entity) {
+		if (isModEnabled('multicompany') && $conf->entity == 1 && $user->admin && !$user->entity) {
 			$sql .= " LEFT JOIN ".$this->db->prefix()."entity as e ON e.rowid = u.entity";
 			if ($force_entity) {
 				$sql .= " WHERE u.entity IN (0, ".$this->db->sanitize($force_entity).")";
@@ -1973,7 +1973,7 @@ class Form
 				$sql .= " WHERE u.entity IS NOT NULL";
 			}
 		} else {
-			if (!empty($conf->multicompany->enabled) && !empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE)) {
+			if (isModEnabled('multicompany') && !empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE)) {
 				$sql .= " LEFT JOIN ".$this->db->prefix()."usergroup_user as ug";
 				$sql .= " ON ug.fk_user = u.rowid";
 				$sql .= " WHERE ug.entity = ".$conf->entity;
@@ -2075,7 +2075,7 @@ class Form
 							$moreinfo .= ($moreinfo ? ' - ' : ' (').$langs->trans('Disabled');
 						}
 					}
-					if (!empty($conf->multicompany->enabled) && empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE) && $conf->entity == 1 && $user->admin && !$user->entity) {
+					if (isModEnabled('multicompany') && empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE) && $conf->entity == 1 && $user->admin && !$user->entity) {
 						if (!$obj->entity) {
 							$moreinfo .= ($moreinfo ? ' - ' : ' (').$langs->trans("AllEntities");
 						} else {
@@ -9030,7 +9030,7 @@ class Form
 		/*
 		$addadmin = '';
 		if (property_exists($object, 'admin')) {
-			if (!empty($conf->multicompany->enabled) && !empty($object->admin) && empty($object->entity)) {
+			if (isModEnabled('multicompany') && !empty($object->admin) && empty($object->entity)) {
 				$addadmin .= img_picto($langs->trans("SuperAdministratorDesc"), "redstar", 'class="paddingleft"');
 			} elseif (!empty($object->admin)) {
 				$addadmin .= img_picto($langs->trans("AdministratorDesc"), "star", 'class="paddingleft"');
@@ -9477,11 +9477,11 @@ class Form
 
 		// On recherche les groupes
 		$sql = "SELECT ug.rowid, ug.nom as name";
-		if (!empty($conf->multicompany->enabled) && $conf->entity == 1 && $user->admin && !$user->entity) {
+		if (isModEnabled('multicompany') && $conf->entity == 1 && $user->admin && !$user->entity) {
 			$sql .= ", e.label";
 		}
 		$sql .= " FROM ".$this->db->prefix()."usergroup as ug ";
-		if (!empty($conf->multicompany->enabled) && $conf->entity == 1 && $user->admin && !$user->entity) {
+		if (isModEnabled('multicompany') && $conf->entity == 1 && $user->admin && !$user->entity) {
 			$sql .= " LEFT JOIN ".$this->db->prefix()."entity as e ON e.rowid=ug.entity";
 			if ($force_entity) {
 				$sql .= " WHERE ug.entity IN (0, ".$force_entity.")";
@@ -9531,7 +9531,7 @@ class Form
 					$out .= '>';
 
 					$out .= $obj->name;
-					if (!empty($conf->multicompany->enabled) && empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE) && $conf->entity == 1) {
+					if (isModEnabled('multicompany') && empty($conf->global->MULTICOMPANY_TRANSVERSE_MODE) && $conf->entity == 1) {
 						$out .= " (".$obj->label.")";
 					}