diff --git a/calendar/classes/external/event_exporter_base.php b/calendar/classes/external/event_exporter_base.php
index a6bef22d17e..d2d9923d713 100644
--- a/calendar/classes/external/event_exporter_base.php
+++ b/calendar/classes/external/event_exporter_base.php
@@ -248,6 +248,9 @@ class event_exporter_base extends exporter {
         $values['iscourseevent'] = false;
         $values['iscategoryevent'] = false;
         if ($moduleproxy = $event->get_course_module()) {
+            // We need a separate property to flag if an event is action event.
+            // That's required because canedit return true but action action events cannot be edited on the calendar UI.
+            // But they are considered editable because you can drag and drop the event on the month view.
             $values['isactionevent'] = true;
         } else if ($event->get_type() == 'course') {
             $values['iscourseevent'] = true;
diff --git a/calendar/templates/event_item.mustache b/calendar/templates/event_item.mustache
index 91d07519887..721d681b714 100644
--- a/calendar/templates/event_item.mustache
+++ b/calendar/templates/event_item.mustache
@@ -49,9 +49,11 @@
                             {{#pix}}t/delete, core, {{#str}}delete{{/str}}{{/pix}}
                         </a>
                     {{/candelete}}
-                    <a href="{{editurl}}" data-action="edit">
-                        {{#pix}}t/edit, core, {{#str}}edit{{/str}}{{/pix}}
-                    </a>
+                    {{^isactionevent}}
+                        <a href="{{editurl}}" data-action="edit">
+                            {{#pix}}t/edit, core, {{#str}}edit{{/str}}{{/pix}}
+                        </a>
+                    {{/isactionevent}}
                 {{/canedit}}
             </div>
             {{#icon}}{{#pix}} {{key}}, {{component}}, {{alttext}} {{/pix}}{{/icon}}