diff --git a/notebook/templates/view.html b/notebook/templates/view.html
index 7fd8c38c5..3e2dd54f2 100644
--- a/notebook/templates/view.html
+++ b/notebook/templates/view.html
@@ -23,7 +23,7 @@
     }
   </style>
   <div id="container">
-    <iframe id="iframe" sandbox="allow-scripts" src="/files/{{file_path}}"></iframe>
+    <iframe id="iframe" sandbox="allow-scripts" src="{{base_url}}/files/{{file_path}}"></iframe>
   </div>
 </body>