diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index f1492f9a5b4..c732b8cd673 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -3015,7 +3015,7 @@ class Form
         global $langs;
         $langs->load("categories");
 
-		include_once DOL_DOCUMENT_ROOT.'/categories/class.categorie.class.php';
+		include_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
         
         $cat = new Categorie($this->db);
         $cate_arbo = $cat->get_full_arbo($type,$excludeafterid);
@@ -4675,7 +4675,7 @@ class Form
 	{
 		global $db;
 
-		include_once DOL_DOCUMENT_ROOT.'/categories/class.categorie.class.php';
+		include_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
 
 		$cat = new Categorie($db);
 		$categories = $cat->containing($id, $type);