diff --git a/server/SHServ/Entities/Device.php b/server/SHServ/Entities/Device.php
index ebb0111..83be383 100644
--- a/server/SHServ/Entities/Device.php
+++ b/server/SHServ/Entities/Device.php
@@ -7,6 +7,7 @@
 use \SHServ\Tools\DeviceAPI\Base;
 use \SHServ\Tools\DeviceAPI\Relay;
 use \SHServ\Tools\DeviceAPI\Button;
+use \SHServ\Tools\DeviceAPI\Sensor;
 
 class Device extends \SHServ\Middleware\Entity {