diff --git a/htdocs/accountancy/customer/lines.php b/htdocs/accountancy/customer/lines.php
index 4a8080ab8b4..469f29ad3c7 100644
--- a/htdocs/accountancy/customer/lines.php
+++ b/htdocs/accountancy/customer/lines.php
@@ -85,7 +85,7 @@ if (!$sortorder) {
 }
 
 // Security check
-if (empty($conf->accounting->enabled)) {
+if (!isModEnabled('accounting')) {
 	accessforbidden();
 }
 if ($user->socid > 0) {