diff --git a/mod/h5pactivity/classes/local/attempt.php b/mod/h5pactivity/classes/local/attempt.php
index d039b3a1e85..4e8724feeb5 100644
--- a/mod/h5pactivity/classes/local/attempt.php
+++ b/mod/h5pactivity/classes/local/attempt.php
@@ -52,7 +52,6 @@ class attempt {
      */
     public function __construct(stdClass $record) {
         $this->record = $record;
-        $this->results = null;
     }
 
     /**