diff --git a/lms/templates/courseware/courseware.html b/lms/templates/courseware/courseware.html
index 2631bfd4cd..cda9e71b0f 100644
--- a/lms/templates/courseware/courseware.html
+++ b/lms/templates/courseware/courseware.html
@@ -176,7 +176,7 @@ ${HTML(fragment.foot_html())}
                                 <span class="icon fa fa-angle-right" aria-hidden="true"></span>
                             % endif
                             % if chapter:
-                                <span class="nav-item nav-item-chapter">
+                                <span class="nav-item nav-item-chapter" data-course-position="${course.position}" data-chapter-position="${chapter.position}">
                                     <a href="${course_url}#${unicode(chapter.location)}">${chapter.display_name_with_default}</a>
                                 </span>
                                 <span class="icon fa fa-angle-right" aria-hidden="true"></span>