diff --git a/htdocs/core/class/html.formcategory.class.php b/htdocs/core/class/html.formcategory.class.php
index 91a4d72cf42..312ec50b67a 100644
--- a/htdocs/core/class/html.formcategory.class.php
+++ b/htdocs/core/class/html.formcategory.class.php
@@ -32,7 +32,7 @@ class FormCategory extends Form
 	 * @param Array $preSelected	A list with the elements that should pre-selected
 	 * @return string				A HTML filter box (Note: selected results can get with GETPOST("search_category_".$type."_list"))
 	 */
-	public function GetFilterBox($type, $preSelected)
+	public function getFilterBox($type, $preSelected)
 	{
 		// phpcs:enable
 		global $langs;
diff --git a/htdocs/product/stock/list.php b/htdocs/product/stock/list.php
index 2b6ec559b71..8f8ca7ad283 100644
--- a/htdocs/product/stock/list.php
+++ b/htdocs/product/stock/list.php
@@ -341,7 +341,7 @@ $moreforfilter = '';
 
 if (!empty($conf->categorie->enabled))
 {
-	$moreforfilter .= $form->GetFilterBox(Categorie::TYPE_WAREHOUSE, $search_category_list);
+	$moreforfilter .= $form->getFilterBox(Categorie::TYPE_WAREHOUSE, $search_category_list);
 }
 
 /*$moreforfilter.='<div class="divsearchfield">';