diff --git a/htdocs/compta/ventilation/index.php b/htdocs/compta/ventilation/index.php
index 0b02d6f25a4..3d97679add6 100644
--- a/htdocs/compta/ventilation/index.php
+++ b/htdocs/compta/ventilation/index.php
@@ -30,6 +30,7 @@
 require("./pre.inc.php");
 
 $langs->load("compta");
+$langs->load("bills");
 
 llxHeader('','Compta - Ventilation');