diff --git a/lib/completion/completion_criteria_completion.php b/lib/completion/completion_criteria_completion.php
index a2879db4d69..9885481a941 100644
--- a/lib/completion/completion_criteria_completion.php
+++ b/lib/completion/completion_criteria_completion.php
@@ -149,7 +149,7 @@ class completion_criteria_completion extends data_object {
 
             $record = $DB->get_record('course_completion_criteria', $params);
 
-            $this->attach_criteria(completion_criteria::factory($record));
+            $this->attach_criteria(completion_criteria::factory((array) $record));
         }
 
         return $this->_criteria;