diff --git a/src/CronTaskLog.php b/src/CronTaskLog.php
index fedd6b03143..496b050de98 100644
--- a/src/CronTaskLog.php
+++ b/src/CronTaskLog.php
@@ -38,8 +38,11 @@
 /**
  * CronTaskLog class
  **/
-class CronTaskLog extends CommonDBTM
+class CronTaskLog extends CommonDBChild
 {
+    public static $itemtype  = 'CronTask';
+    public static $items_id  = 'crontasks_id';
+
    // Class constant
     const STATE_START = 0;
     const STATE_RUN   = 1;