diff --git a/htdocs/accountancy/admin/subaccount.php b/htdocs/accountancy/admin/subaccount.php
index c3308393c27..26c02de3467 100644
--- a/htdocs/accountancy/admin/subaccount.php
+++ b/htdocs/accountancy/admin/subaccount.php
@@ -46,7 +46,7 @@ $search_type = GETPOST('search_type', 'int');
 if ($user->socid > 0) {
 	accessforbidden();
 }
-if (!$user->rights->accounting->chartofaccount) {
+if (empty($user->rights->accounting->chartofaccount)) {
 	accessforbidden();
 }