diff --git a/web/pgadmin/preferences/templates/preferences/preferences.js b/web/pgadmin/preferences/templates/preferences/preferences.js
index 1264a4d71..09788fc88 100644
--- a/web/pgadmin/preferences/templates/preferences/preferences.js
+++ b/web/pgadmin/preferences/templates/preferences/preferences.js
@@ -35,7 +35,7 @@ define(
            * This model will be used to keep tracking of the changes done for
            * an individual option.
            */
-          var PreferenceModel = Backbone.Model.extend({
+          var PreferenceModel = pgBrowser.DataModel.extend({
             idAttribute: 'id',
             defaults: {
               id: undefined,