diff --git a/mod/lesson/locallib.php b/mod/lesson/locallib.php
index edbcaa6c80a..28d1dfbeb3f 100644
--- a/mod/lesson/locallib.php
+++ b/mod/lesson/locallib.php
@@ -2742,7 +2742,7 @@ class lesson_page_type_manager {
     public function load_all_pages(lesson $lesson) {
         global $DB;
         if (!($pages =$DB->get_records('lesson_pages', array('lessonid'=>$lesson->id)))) {
-            print_error('cannotfindpages', 'lesson');
+            return array(); // Records returned empty.
         }
         foreach ($pages as $key=>$page) {
             $pagetype = get_class($this->types[$page->qtype]);