diff --git a/lms/templates/courseware/courseware-chromeless.html b/lms/templates/courseware/courseware-chromeless.html
index 39c062dbab..6ebabf6860 100644
--- a/lms/templates/courseware/courseware-chromeless.html
+++ b/lms/templates/courseware/courseware-chromeless.html
@@ -69,7 +69,7 @@ ${HTML(fragment.foot_html())}
 
 </%block>
 
-<div class="course-wrapper">
+<div class="course-wrapper chromeless">
   <section class="course-content" id="course-content">
       <main id="main" tabindex="-1" aria-label="Content">
         ${HTML(fragment.body_html())}