diff --git a/www/manager6/storage/Base.js b/www/manager6/storage/Base.js
index 4dd84b87..e6a60729 100644
--- a/www/manager6/storage/Base.js
+++ b/www/manager6/storage/Base.js
@@ -60,6 +60,8 @@ Ext.define('PVE.panel.StoragePruneInputPanel', {
     xtype: 'pveStoragePruneInputPanel',
     mixins: ['Proxmox.Mixin.CBind'],
 
+    onlineHelp: 'vzdump_retention',
+
     keepLastEmptyText: gettext('1'),
 
     onGetValues: function(formValues) {