diff --git a/htdocs/compta/facture/class/api_invoices.class.php b/htdocs/compta/facture/class/api_invoices.class.php
index 667190051de..a8c29a76754 100644
--- a/htdocs/compta/facture/class/api_invoices.class.php
+++ b/htdocs/compta/facture/class/api_invoices.class.php
@@ -969,7 +969,7 @@ class Invoices extends DolibarrApi
      *
      * @url     POST /payments
      *
-     * @return array  Payment ID
+     * @return int  Payment ID
      * @throws 400
      * @throws 401
      * @throws 404