diff --git a/98_TadoAPI.pm b/98_TadoAPI.pm
index 3d5f3f5..ce33569 100644
--- a/98_TadoAPI.pm
+++ b/98_TadoAPI.pm
@@ -1004,6 +1004,11 @@ sub TadoAPI_UpdateAllZoneReadingsCallback {
                         "Battery_" . $device->{'serialNo'},
                         $device->{'batteryState'}
                     );
+                    readingsBulkUpdate(
+                        $hash,
+                        "ChildLockEnabled_" . $device->{'serialNo'},
+                        $device->{'childLockEnabled'}
+                    );
                 }
             }
             readingsEndUpdate( $hash, 1 );