diff --git a/IPython/frontend/html/notebook/templates/notebook.html b/IPython/frontend/html/notebook/templates/notebook.html
index 4e1f167..d2377fd 100644
--- a/IPython/frontend/html/notebook/templates/notebook.html
+++ b/IPython/frontend/html/notebook/templates/notebook.html
@@ -22,6 +22,7 @@
     <link rel="stylesheet" href="static/codemirror-2.12/lib/codemirror.css">
     <link rel="stylesheet" href="static/codemirror-2.12/mode/rst/rst.css">
     <link rel="stylesheet" href="static/codemirror-2.12/theme/ipython.css">
+    <link rel="stylesheet" href="static/codemirror-2.12/theme/default.css">
 
     <link rel="stylesheet" href="static/css/boilerplate.css" type="text/css" />
     <link rel="stylesheet" href="static/css/layout.css" type="text/css" />