diff --git a/lms/static/sass/course/courseware/_sidebar.scss b/lms/static/sass/course/courseware/_sidebar.scss
index 4e893d2455..1ab841e1e5 100644
--- a/lms/static/sass/course/courseware/_sidebar.scss
+++ b/lms/static/sass/course/courseware/_sidebar.scss
@@ -99,6 +99,7 @@ section.course-index {
       @include border-radius(0);
       margin: 0;
       padding: 9px 0 9px 9px;
+      overflow: auto;
 
       li {
         border-bottom: 0;