diff --git a/developer_manual/app/appframework/database.rst b/developer_manual/app/appframework/database.rst
index e81e20b4b..e2736471e 100644
--- a/developer_manual/app/appframework/database.rst
+++ b/developer_manual/app/appframework/database.rst
@@ -25,7 +25,7 @@ Getters and setters will automatically be created for all public attributes. Sho
 
   use \OCA\AppFramework\Db\Entity
 
-  class Item {
+  class Item extends Entity {
 
       public $id;
       public $name;