diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
index 6e2c2ef4fc..b7d43fba22 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
@@ -13,7 +13,7 @@
 [% END %]
 
 </head>
-[% INCLUDE 'bodytag.inc' bodyid='opac-main' %]
+[% INCLUDE 'bodytag.inc' bodyid='opac-course-details' %]
 [% INCLUDE 'masthead.inc' %]
 
 <div class="main">