diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 776434f..fd47f56 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -29,8 +29,8 @@ class Navigation
     /**
      * Install navigation providing
      *
-     * @param string       $path   Module path
-     * @param ApplicationAbstract $app Application
+     * @param string              $path Module path
+     * @param ApplicationAbstract $app  Application
      *
      * @return void
      *
diff --git a/Admin/Routes/Web/Backend.php b/Admin/Routes/Web/Backend.php
index 7804181..464ba16 100644
--- a/Admin/Routes/Web/Backend.php
+++ b/Admin/Routes/Web/Backend.php
@@ -6,7 +6,7 @@ use phpOMS\Account\PermissionType;
 use phpOMS\Router\RouteVerb;
 
 return [
-	'^.*/contract/list.*$' => [
+    '^.*/contract/list.*$' => [
         [
             'dest'       => '\Modules\ContractManagement\Controller\BackendController:viewContractList',
             'verb'       => RouteVerb::GET,
diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index d89b25d..622014a 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -42,7 +42,7 @@ use Modules\ContractManagement\Models\ContractMapper;
  */
 final class ApiController extends Controller
 {
-	/**
+    /**
      * Api method to create a contract
      *
      * @param RequestAbstract  $request  Request
@@ -57,7 +57,7 @@ final class ApiController extends Controller
      */
     public function apiContractCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : void
     {
-    	if (!empty($val = $this->validateContractCreate($request))) {
+        if (!empty($val = $this->validateContractCreate($request))) {
             $response->set('contract_create', new FormValidation($val));
             $response->header->status = RequestStatusCode::R_400;
 
@@ -103,11 +103,11 @@ final class ApiController extends Controller
      */
     private function createContractFromRequest(RequestAbstract $request) : Contract
     {
-        $contract       = new Contract();
-        $contract->title = (string) ($request->getData('title') ?? '');
+        $contract              = new Contract();
+        $contract->title       = (string) ($request->getData('title') ?? '');
         $contract->description = (string) ($request->getData('description') ?? '');
-        $contract->type = new NullContractType((int) ($request->getData('type') ?? 0));
-        $contract->start = new \DateTime($request->getData('start') ?? 'now');
+        $contract->type        = new NullContractType((int) ($request->getData('type') ?? 0));
+        $contract->start       = new \DateTime($request->getData('start') ?? 'now');
 
         if (!empty($request->getData('end'))) {
             $contract->end = new \DateTime($request->getData('end'));
@@ -202,7 +202,7 @@ final class ApiController extends Controller
      */
     private function createContractTypeFromRequest(RequestAbstract $request) : ContractType
     {
-        $contractType = new ContractType();
+        $contractType       = new ContractType();
         $contractType->name = (string) ($request->getData('name') ?? '');
 
         return $contractType;
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index d0c5322..d796bee 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -36,7 +36,7 @@ use Modules\ContractManagement\Models\ContractMapper;
  */
 final class BackendController extends Controller
 {
-	/**
+    /**
      * Routing end-point for application behaviour.
      *
      * @param RequestAbstract  $request  Request
diff --git a/Models/Contract.php b/Models/Contract.php
index ba3db57..f334b7a 100644
--- a/Models/Contract.php
+++ b/Models/Contract.php
@@ -77,7 +77,7 @@ class Contract
      */
     public function __construct()
     {
-        $this->createdAt     = new \DateTimeImmutable('now');
+        $this->createdAt = new \DateTimeImmutable('now');
     }
 
     /**
diff --git a/Models/ContractType.php b/Models/ContractType.php
index 0f60880..1b54edd 100644
--- a/Models/ContractType.php
+++ b/Models/ContractType.php
@@ -48,9 +48,7 @@ class ContractType implements \JsonSerializable, ArrayableInterface
      *
      * @var ContractTypeL11n
      */
-    protected string |
-
- ContractTypeL11n $l11n;
+    protected string | ContractTypeL11n $l11n;
 
     /**
      * Constructor.
@@ -82,22 +80,22 @@ class ContractType implements \JsonSerializable, ArrayableInterface
      * Set l11n
      *
      * @param string|ContractTypeL11n $l11n Tag article l11n
-     * @param string                       $lang Language
+     * @param string                  $lang Language
      *
      * @return void
      *
      * @since 1.0.0
      */
-    public function setL11n($l11n, string $lang = ISO639x1Enum::_EN) : void
+    public function setL11n(string|ContractTypeL11n $l11n, string $lang = ISO639x1Enum::_EN) : void
     {
         if ($l11n instanceof ContractTypeL11n) {
             $this->l11n = $l11n;
-        } elseif (\is_string($l11n)) {
+        } elseif ($this->l11n instanceof ContractTypeL11n) {
+            $this->l11n->title = $l11n;
+        } else {
             $this->l11n        = new ContractTypeL11n();
             $this->l11n->title = $l11n;
             $this->l11n->setLanguage($lang);
-        } elseif ($this->l11n instanceof ContractTypeL11n && \is_string($l11n)) {
-            $this->l11n->title = $l11n;
         }
     }
 
diff --git a/Models/ContractTypeL11n.php b/Models/ContractTypeL11n.php
index 7092063..7da01e5 100644
--- a/Models/ContractTypeL11n.php
+++ b/Models/ContractTypeL11n.php
@@ -41,9 +41,7 @@ class ContractTypeL11n implements \JsonSerializable, ArrayableInterface
      * @var int|ContractType
      * @since 1.0.0
      */
-    protected int |
-
-ContractType $type = 0;
+    protected int | ContractType $type = 0;
 
     /**
      * Language.
@@ -65,8 +63,8 @@ ContractType $type = 0;
      * Constructor.
      *
      * @param int|ContractType $type     Attribute type
-     * @param string                $title    Localized title
-     * @param string                $language Language
+     * @param string           $title    Localized title
+     * @param string           $language Language
      *
      * @since 1.0.0
      */
diff --git a/Theme/Backend/contract-single.tpl.php b/Theme/Backend/contract-single.tpl.php
index 33c5d8e..8863029 100644
--- a/Theme/Backend/contract-single.tpl.php
+++ b/Theme/Backend/contract-single.tpl.php
@@ -33,14 +33,14 @@ echo $this->getData('nav')->render(); ?>
     <div class="tab-content">
         <input type="radio" id="c-tab-1" name="tabular-2"<?= $this->request->uri->fragment === 'c-tab-1' ? ' checked' : ''; ?>>
         <div class="tab">
-	        <div class="row">
-	        </div>
-		</div>
+            <div class="row">
+            </div>
+        </div>
 
-		<input type="radio" id="c-tab-2" name="tabular-2"<?= $this->request->uri->fragment === 'c-tab-2' ? ' checked' : ''; ?>>
+        <input type="radio" id="c-tab-2" name="tabular-2"<?= $this->request->uri->fragment === 'c-tab-2' ? ' checked' : ''; ?>>
         <div class="tab">
-	        <div class="row">
-	        </div>
-		</div>
+            <div class="row">
+            </div>
+        </div>
     </div>
 </div>