diff --git a/src/general/uuid.ts b/src/general/uuid.ts
index 22ad2ea4..37d9a6b7 100644
--- a/src/general/uuid.ts
+++ b/src/general/uuid.ts
@@ -15,6 +15,7 @@
 /**
  * Universally unique identifier of the thing
  *
+ * @filterable
  * @pattern ^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
  * @see http://stackoverflow.com/questions/7905929/how-to-test-valid-uuid-guid
  */
diff --git a/src/things/abstract/thing.ts b/src/things/abstract/thing.ts
index 408d527d..dd429389 100644
--- a/src/things/abstract/thing.ts
+++ b/src/things/abstract/thing.ts
@@ -102,6 +102,8 @@ export interface SCThingWithoutReferences {
   uid: SCUuid;
   /**
    * URL of the thing
+   * 
+   * @filterable
    */
   url?: string;
 }