diff --git a/course/lib.php b/course/lib.php
index 994b37ef4eb..a8ac69b2645 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -1679,6 +1679,12 @@ function set_coursemodule_name($id, $name) {
     $grademodule->modname = $cm->modname;
     grade_update_mod_grades($grademodule);
 
+    // Update calendar events with the new name.
+    $refresheventsfunction = $cm->modname . '_refresh_events';
+    if (function_exists($refresheventsfunction)) {
+        call_user_func($refresheventsfunction, $cm->course);
+    }
+
     return true;
 }
 
@@ -3709,6 +3715,12 @@ function duplicate_module($course, $cm) {
         moveto_module($newcm, $section, $cm);
         moveto_module($cm, $section, $newcm);
 
+        // Update calendar events with the duplicated module.
+        $refresheventsfunction = $newcm->modname . '_refresh_events';
+        if (function_exists($refresheventsfunction)) {
+            call_user_func($refresheventsfunction, $newcm->course);
+        }
+
         // Trigger course module created event. We can trigger the event only if we know the newcmid.
         $event = \core\event\course_module_created::create_from_cm($newcm);
         $event->trigger();