diff --git a/htdocs/accountancy/customer/card.php b/htdocs/accountancy/customer/card.php
index 296d6729301..0b3435ecb92 100644
--- a/htdocs/accountancy/customer/card.php
+++ b/htdocs/accountancy/customer/card.php
@@ -38,7 +38,7 @@ $codeventil = GETPOST('codeventil', 'int');
 $id = GETPOST('id', 'int');
 
 // Security check
-if (empty($conf->accounting->enabled)) {
+if (!isModEnabled('accounting')) {
 	accessforbidden();
 }
 if ($user->socid > 0) {