diff --git a/common/lib/xmodule/xmodule/js/src/sequence/display.coffee b/common/lib/xmodule/xmodule/js/src/sequence/display.coffee
index ff6794ec10..ab337d9b7e 100644
--- a/common/lib/xmodule/xmodule/js/src/sequence/display.coffee
+++ b/common/lib/xmodule/xmodule/js/src/sequence/display.coffee
@@ -96,10 +96,9 @@ class @Sequence
 
   goto: (event) =>
     event.preventDefault()
-    # Links from within the coureware uses <a class='seqnav' href="n">...</a>
-    if $(event.target).hasClass 'seqnav'
+    if $(event.target).hasClass 'seqnav' # Links from courseware <a class='seqnav' href='n'>...</a>
       new_position = $(event.target).attr('href')
-    else
+    else # Tab links generated by backend template
       new_position = $(event.target).data('element')
 
     if (1 <= new_position) and (new_position <= @num_contents)