diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 890e662f726..283df4c995f 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -6522,7 +6522,11 @@ class Form
if (empty($labeladddateof)) {
$labeladddateof = $langs->trans("DateInvoice");
}
- $retstring .= ' -