diff --git a/Controller.php b/Controller.php
index 8244268..92167eb 100644
--- a/Controller.php
+++ b/Controller.php
@@ -47,6 +47,14 @@ class Controller extends ModuleAbstract implements WebInterface
      */
     /* public */ const MODULE_VERSION = '1.0.0';
 
+    /**
+     * Module id.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+    /* public */ const MODULE_ID = 1003400000;
+
     /**
      * JavaScript files.
      *