diff --git a/calendar/renderer.php b/calendar/renderer.php
index 03a84d7c8a5..7ba62b074fc 100644
--- a/calendar/renderer.php
+++ b/calendar/renderer.php
@@ -286,7 +286,7 @@ class core_calendar_renderer extends plugin_renderer_base {
             $output .= html_writer::tag('div', $source, array('class' => 'subscription'));
         }
         if (!empty($event->courselink)) {
-            $output .= html_writer::tag('div', $event->courselink, array('class' => 'course'));
+            $output .= html_writer::tag('div', $event->courselink);
         }
         if (!empty($event->time)) {
             $output .= html_writer::tag('span', $event->time, array('class' => 'date pull-xs-right m-r-1'));
@@ -296,7 +296,8 @@ class core_calendar_renderer extends plugin_renderer_base {
         }
 
         if (!empty($event->actionurl)) {
-            $output .= html_writer::tag('div', html_writer::link(new moodle_url($event->actionurl), $event->actionname));
+            $actionlink = html_writer::link(new moodle_url($event->actionurl), $event->actionname);
+            $output .= html_writer::tag('div', $actionlink, ['class' => 'action']);
         }
 
         $output .= $this->output->box_end();
diff --git a/theme/bootstrapbase/less/moodle/calendar.less b/theme/bootstrapbase/less/moodle/calendar.less
index dcbee01b3cc..96922d53bd0 100644
--- a/theme/bootstrapbase/less/moodle/calendar.less
+++ b/theme/bootstrapbase/less/moodle/calendar.less
@@ -165,14 +165,14 @@
                     margin-right: 0.5rem;
                 }
                 .name,
-                .course {
+                .action {
                     margin-bottom: 5px;
                 }
                 .date {
                     float: right;
                 }
-                .course,
-                .subscription {
+                .subscription,
+                .action {
                     float: left;
                     clear: left;
                 }
diff --git a/theme/bootstrapbase/style/moodle.css b/theme/bootstrapbase/style/moodle.css
index a9c078a2774..09911c93394 100644
--- a/theme/bootstrapbase/style/moodle.css
+++ b/theme/bootstrapbase/style/moodle.css
@@ -5686,14 +5686,14 @@ img.iconsmall {
   margin-right: 0.5rem;
 }
 .path-calendar .maincalendar .eventlist .event .name,
-.path-calendar .maincalendar .eventlist .event .course {
+.path-calendar .maincalendar .eventlist .event .action {
   margin-bottom: 5px;
 }
 .path-calendar .maincalendar .eventlist .event .date {
   float: right;
 }
-.path-calendar .maincalendar .eventlist .event .course,
-.path-calendar .maincalendar .eventlist .event .subscription {
+.path-calendar .maincalendar .eventlist .event .subscription,
+.path-calendar .maincalendar .eventlist .event .action {
   float: left;
   clear: left;
 }