diff --git a/htdocs/categories/class/api_categories.class.php b/htdocs/categories/class/api_categories.class.php
index 7e3720abad8..fcac14f1337 100644
--- a/htdocs/categories/class/api_categories.class.php
+++ b/htdocs/categories/class/api_categories.class.php
@@ -51,10 +51,13 @@ class Categories extends DolibarrApi
 		4 => 'contact',
 		5 => 'account',
 		6 => 'project',
-		//7 => 'user',
-		//8 => 'bank_line',
-		//9 => 'warehouse',
-		//10 => 'actioncomm',
+		7 => 'user',
+		8 => 'bank_line',
+		9 => 'warehouse',
+		10 => 'actioncomm',
+		11 => 'website_page',
+		12 => 'ticket',
+		13 => 'knowledgemanagement'
 	);
 
 	/**
@@ -662,6 +665,10 @@ class Categories extends DolibarrApi
 		$object = parent::_cleanObjectDatas($object);
 
 		// Remove fields not relevent to categories
+		unset($object->MAP_CAT_FK);
+		unset($object->MAP_CAT_TABLE);
+		unset($object->MAP_OBJ_CLASS);
+		unset($object->MAP_OBJ_TABLE);
 		unset($object->country);
 		unset($object->country_id);
 		unset($object->country_code);