diff --git a/notebook/static/tree/js/notebooklist.js b/notebook/static/tree/js/notebooklist.js
index dcce051b6..6c6af711d 100644
--- a/notebook/static/tree/js/notebooklist.js
+++ b/notebook/static/tree/js/notebooklist.js
@@ -1193,7 +1193,7 @@ define([
                         .css('position', 'absolute');
 
                     var parse_large_file = function (f, item) {
-                        // codes inspired by http://stackoverflow.com/a/28318964
+                        // codes inspired by https://stackoverflow.com/a/28318964
                         var chunk_size = 1024 * 1024;
                         var offset = 0;
                         var chunk = 0;