diff --git a/IPython/frontend/html/notebook/templates/notebook.html b/IPython/frontend/html/notebook/templates/notebook.html
index c9fdd4c..8b6514f 100644
--- a/IPython/frontend/html/notebook/templates/notebook.html
+++ b/IPython/frontend/html/notebook/templates/notebook.html
@@ -225,5 +225,6 @@ data-notebook-id={{notebook_id}}
+
{% endblock %}