diff --git a/lib/completionlib.php b/lib/completionlib.php
index ab4b851c24c..2f88802b1de 100644
--- a/lib/completionlib.php
+++ b/lib/completionlib.php
@@ -1116,6 +1116,9 @@ class completion_info {
 
                 if (empty($data->coursemoduleid)) {
                     $cacheddata[$data->cmid] = $defaultdata;
+                    if ($data->viewed) {
+                        $cacheddata[$data->cmid]['viewed'] = $data->viewed;
+                    }
                     $cacheddata[$data->cmid]['coursemoduleid'] = $data->cmid;
                 } else {
                     unset($data->cmid);