diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 9bd402a1485..fbd00c99281 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -3008,7 +3008,8 @@ class Form
* @param int $productid Id of product
* @param string $htmlname Name of HTML field
* @param int $selected_supplier Pre-selected supplier if more than 1 result
- * @return void
+ *
+ * @return string
*/
public function select_product_fourn_price($productid, $htmlname = 'productfournpriceid', $selected_supplier = '')
{