diff --git a/htdocs/categories/class/api_categories.class.php b/htdocs/categories/class/api_categories.class.php
index fcac14f1337..0a618974024 100644
--- a/htdocs/categories/class/api_categories.class.php
+++ b/htdocs/categories/class/api_categories.class.php
@@ -305,7 +305,8 @@ class Categories extends DolibarrApi
 			Categorie::TYPE_CUSTOMER,
 			Categorie::TYPE_SUPPLIER,
 			Categorie::TYPE_MEMBER,
-			Categorie::TYPE_PROJECT
+			Categorie::TYPE_PROJECT,
+			Categorie::TYPE_KNOWLEDGEMANAGEMENT
 		])) {
 			throw new RestException(401);
 		}
@@ -322,6 +323,8 @@ class Categories extends DolibarrApi
 			throw new RestException(401);
 		} elseif ($type == Categorie::TYPE_PROJECT && !DolibarrApiAccess::$user->rights->projet->lire) {
 			throw new RestException(401);
+		} elseif ($type == Categorie::TYPE_KNOWLEDGEMANAGEMENT && !DolibarrApiAccess::$user->rights->knowledgemanagement->knowledgerecord->read) {
+			throw new RestException(401);
 		}
 
 		$categories = $this->category->getListForItem($id, $type, $sortfield, $sortorder, $limit, $page);