diff --git a/Admin/Activate.php b/Admin/Activate.php
index e07e90f..7204b09 100644
--- a/Admin/Activate.php
+++ b/Admin/Activate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Tools\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\ActivateAbstract;
 
diff --git a/Admin/Deactivate.php b/Admin/Deactivate.php
index e45ce30..5ddf982 100644
--- a/Admin/Deactivate.php
+++ b/Admin/Deactivate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Tools\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\DeactivateAbstract;
 
diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index a4717c4..c3cc8be 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -14,6 +14,7 @@
  * @link       http://orange-management.com
  */
 namespace Modules\Tools\Admin\Install;
+use phpOMS\DataStorage\Database\Pool;
 
 /**
  * Navigation class.
@@ -33,6 +34,7 @@ class Navigation
         $navData = json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
 
         $class = '\\Modules\\Navigation\\Admin\\Installer';
+        /** @var $class \Modules\Navigation\Admin\Installer */
         $class::installExternal($dbPool, $navData);
     }
 }
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index 3742209..840b7f2 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Tools\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\UninstallAbstract;
 
diff --git a/Admin/Update.php b/Admin/Update.php
index 040d2de..356703e 100644
--- a/Admin/Update.php
+++ b/Admin/Update.php
@@ -15,9 +15,10 @@
  */
 namespace Modules\Tools\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\UpdateAbstract;
+use phpOMS\System\FileSystem;
 
 /**
  * Navigation class.
@@ -38,6 +39,8 @@ class Update extends UpdateAbstract
      */
     public static function update(Pool $dbPool, array $info)
     {
+        FileSystem::deletePath(__DIR__ . '/Update');
+        mkdir('Update');
         parent::update($dbPool, $info);
     }
 }
diff --git a/Controller.php b/Controller.php
index fd457b1..67a92f6 100644
--- a/Controller.php
+++ b/Controller.php
@@ -15,8 +15,6 @@
  */
 namespace Modules\Tools;
 
-use phpOMS\Message\RequestAbstract;
-use phpOMS\Message\ResponseAbstract;
 use phpOMS\Module\ModuleAbstract;
 use phpOMS\Module\WebInterface;
 
@@ -56,7 +54,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var \string
      * @since 1.0.0
      */
-    protected static $module = 'MyTools';
+    const MODULE_NAME = 'MyTools';
 
     /**
      * Localization files.
diff --git a/Theme/lang/nav.backend.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
similarity index 100%
rename from Theme/lang/nav.backend.en.lang.php
rename to Theme/Backend/Lang/Navigation.en.lang.php
diff --git a/info.json b/info.json
index b5425d3..b60a6d9 100644
--- a/info.json
+++ b/info.json
@@ -27,7 +27,7 @@
             "type": 5,
             "from": "Tools",
             "for": "Navigation",
-            "file": "nav.backend"
+            "file": "Navigation"
         }
     ]
 }