diff --git a/IPython/html/static/notebook/js/notebook.js b/IPython/html/static/notebook/js/notebook.js
index e130d6ca3..09eec9ced 100644
--- a/IPython/html/static/notebook/js/notebook.js
+++ b/IPython/html/static/notebook/js/notebook.js
@@ -2084,6 +2084,7 @@ define(function (require) {
             function (json) {
                 that.notebook_name = json.name;
                 that.notebook_path = json.path;
+                that.last_modified = new Date(json.last_modified);
                 that.session.rename_notebook(json.path);
                 that.events.trigger('notebook_renamed.Notebook', json);
             }