diff --git a/webapp/models/CircuitTask.php b/webapp/models/CircuitTask.php
index 074d0755..e1dbcae9 100644
--- a/webapp/models/CircuitTask.php
+++ b/webapp/models/CircuitTask.php
@@ -2,6 +2,7 @@
 
 
 namespace models;
+require_once('mt/CircuitTask.php');
 
 use mt;
 use phpcommon\SqlHelper;