diff --git a/Admin/Activate.php b/Admin/Activate.php
index 08bdaf0..ff9725a 100644
--- a/Admin/Activate.php
+++ b/Admin/Activate.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin;
 
 use phpOMS\DataStorage\Database\DatabasePool;
diff --git a/Admin/Deactivate.php b/Admin/Deactivate.php
index 68ee686..7352b0a 100644
--- a/Admin/Deactivate.php
+++ b/Admin/Deactivate.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin;
 
 use phpOMS\DataStorage\Database\DatabasePool;
diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 8030bc5..d4cef0e 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -11,7 +11,9 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin\Install;
+
 use phpOMS\DataStorage\Database\DatabasePool;
 
 /**
diff --git a/Admin/Installer.php b/Admin/Installer.php
index f8ed6c3..d51c398 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin;
 
 use phpOMS\DataStorage\Database\DatabaseType;
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index 1fd081b..fae0954 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin;
 
 use phpOMS\DataStorage\Database\DatabasePool;
diff --git a/Admin/Update.php b/Admin/Update.php
index 95f7f37..66743d5 100644
--- a/Admin/Update.php
+++ b/Admin/Update.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Admin;
 
 use phpOMS\DataStorage\Database\DatabasePool;
diff --git a/Controller.php b/Controller.php
index 6dc9cd9..a188009 100644
--- a/Controller.php
+++ b/Controller.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing;
 
 use Modules\Navigation\Models\Navigation;
diff --git a/Models/InvoiceElement.php b/Models/InvoiceElement.php
index 207a281..7a2ee4b 100644
--- a/Models/InvoiceElement.php
+++ b/Models/InvoiceElement.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Models;
 
 /**
diff --git a/Models/InvoiceStatus.php b/Models/InvoiceStatus.php
index f6d4ed0..cff0fe0 100644
--- a/Models/InvoiceStatus.php
+++ b/Models/InvoiceStatus.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Models;
 
 use phpOMS\Stdlib\Base\Enum;
diff --git a/Models/InvoiceType.php b/Models/InvoiceType.php
index d141478..d3f8c12 100644
--- a/Models/InvoiceType.php
+++ b/Models/InvoiceType.php
@@ -11,6 +11,7 @@
  * @link       http://website.orange-management.de
  */
 declare(strict_types = 1);
+
 namespace Modules\Billing\Models;
 
 use phpOMS\Stdlib\Base\Enum;