diff --git a/htdocs/categories/class/categorie.class.php b/htdocs/categories/class/categorie.class.php
index b61a561840d..21454dd18fb 100644
--- a/htdocs/categories/class/categorie.class.php
+++ b/htdocs/categories/class/categorie.class.php
@@ -1518,11 +1518,11 @@ class Categorie extends CommonObject
 	 * Return list of categories (object instances or labels) linked to element of id $id and type $type
 	 * Should be named getListOfCategForObject
 	 *
-	 * @param   int    		$id     	Id of element
-	 * @param   string|int	$type   	Type of category ('customer', 'supplier', 'contact', 'product', 'member') or (0, 1, 2, ...)
-	 * @param   string 		$mode   	'id'=Get array of category ids, 'object'=Get array of fetched category instances, 'label'=Get array of category
-	 *                      	    	labels, 'id'= Get array of category IDs
-	 * @return  Categorie[]|int[]|int   Array of category objects (slow) or Array of category id or < 0 if KO
+	 * @param   int    		$id                 Id of element
+	 * @param   string|int	$type               Type of category ('customer', 'supplier', 'contact', 'product', 'member') or (0, 1, 2, ...)
+	 * @param   string 		$mode               'id'=Get array of category ids, 'object'=Get array of fetched category instances, 'label'=Get array of category
+	 *                                          labels, 'id'= Get array of category IDs
+	 * @return  Categorie[]|int[]|string[]|int  Array of category objects, labels or IDs or < 0 if KO
 	 */
 	public function containing($id, $type, $mode = 'object')
 	{
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 29c7a9f6661..eff326c41da 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -10857,7 +10857,7 @@ abstract class CommonObject
 	 * Existing categories are left untouch.
 	 *
 	 * @param 	string 		$type_categ 	Category type ('customer', 'supplier', 'website_page', ...)
-	 * @return	int							Array of category objects or < 0 if KO
+	 * @return	int[]|int					Array of category IDs or < 0 if KO
 	 */
 	public function getCategoriesCommon($type_categ)
 	{