diff --git a/course/modduplicate.php b/course/modduplicate.php
index b4d593b4e01..30c9aafddd3 100644
--- a/course/modduplicate.php
+++ b/course/modduplicate.php
@@ -61,13 +61,8 @@ $a->modtype = get_string('modulename', $cm->modname);
 $a->modname = format_string($cm->name);
 
 if (!plugin_supports('mod', $cm->modname, FEATURE_BACKUP_MOODLE2)) {
-    echo $output->header();
-    echo $output->notification(get_string('duplicatenosupport', 'core', $a));
-    echo $output->continue_button(
-        new moodle_url('/course/view.php#section-' . $cm->sectionnum, array('id' => $course->id))
-    );
-    echo $output->footer();
-    die;
+    $url = new moodle_url('/course/view.php#section-' . $cm->sectionnum, array('id' => $course->id));
+    print_error('duplicatenosupport', 'core', $url, $a);
 }
 
 // backup the activity