diff --git a/dataengines/notifications/notifications.operations b/dataengines/notifications/notifications.operations
--- a/dataengines/notifications/notifications.operations
+++ b/dataengines/notifications/notifications.operations
@@ -28,6 +28,7 @@
     </entry>
     <entry name="expireTimeout" type="Int">
       <label>The timeout after which the notification will be closed</label>
+      <default>-1</default>
     </entry>
     <entry name="actions" type="StringList">
       <label>List of actions in the format of [{"id": "id-of-the-action", "text": i18n("User visible text")}], </label>