diff --git a/htdocs/fichinter/document.php b/htdocs/fichinter/document.php
index d0dd326df07..a2511cfee8f 100644
--- a/htdocs/fichinter/document.php
+++ b/htdocs/fichinter/document.php
@@ -34,7 +34,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
 require_once DOL_DOCUMENT_ROOT.'/core/lib/images.lib.php';
 require_once DOL_DOCUMENT_ROOT.'/core/lib/fichinter.lib.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/html.formfile.class.php';
-if (!empty($conf->project->enabled)) {
+if (isModEnabled('project')) {
 	require_once DOL_DOCUMENT_ROOT.'/projet/class/project.class.php';
 }
 
@@ -123,7 +123,7 @@ if ($object->id) {
 	// Thirdparty
 	$morehtmlref .= $langs->trans('ThirdParty').' : '.$object->thirdparty->getNomUrl(1);
 	// Project
-	if (!empty($conf->project->enabled)) {
+	if (isModEnabled('project')) {
 		$langs->load("projects");
 		$morehtmlref .= '<br>'.$langs->trans('Project').' ';
 		if ($user->rights->commande->creer) {