diff --git a/htdocs/comm/propal/document.php b/htdocs/comm/propal/document.php
index 35ab2e28b49..6f17c655e82 100644
--- a/htdocs/comm/propal/document.php
+++ b/htdocs/comm/propal/document.php
@@ -32,7 +32,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/propal.lib.php';
 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/class/html.formfile.class.php';
-if (!empty($conf->project->enabled)) {
+if (isModEnabled('project')) {
 	require_once DOL_DOCUMENT_ROOT.'/projet/class/project.class.php';
 }
 
@@ -136,7 +136,7 @@ if ($object->id > 0) {
 	// Thirdparty
 	$morehtmlref .= '<br>'.$langs->trans('ThirdParty').' : '.$object->thirdparty->getNomUrl(1, 'customer');
 	// Project
-	if (!empty($conf->project->enabled)) {
+	if (isModEnabled('project')) {
 		$langs->load("projects");
 		$morehtmlref .= '<br>'.$langs->trans('Project').' ';
 		if ($user->rights->propal->creer) {