diff --git a/Controller/Controller.php b/Controller/Controller.php
index a52197e..ad11ae4 100644
--- a/Controller/Controller.php
+++ b/Controller/Controller.php
@@ -30,7 +30,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Module path.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     public const MODULE_PATH = __DIR__ . '/../';
@@ -38,7 +38,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Module version.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     public const MODULE_VERSION = '1.0.0';
@@ -46,7 +46,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Module name.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     public const MODULE_NAME = 'Billing';
@@ -54,7 +54,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Module id.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     public const MODULE_ID = 1005100000;
@@ -62,7 +62,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Providing.
      *
-     * @var   string[]
+     * @var string[]
      * @since 1.0.0
      */
     protected static array $providing = [];
@@ -70,7 +70,7 @@ class Controller extends ModuleAbstract implements WebInterface
     /**
      * Dependencies.
      *
-     * @var   string[]
+     * @var string[]
      * @since 1.0.0
      */
     protected static array $dependencies = [];
diff --git a/Models/Invoice.php b/Models/Invoice.php
index 65e9dcf..7c38b0d 100644
--- a/Models/Invoice.php
+++ b/Models/Invoice.php
@@ -30,7 +30,7 @@ class Invoice implements \JsonSerializable
     /**
      * ID.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     protected int $id = 0;
@@ -38,7 +38,7 @@ class Invoice implements \JsonSerializable
     /**
      * Number ID.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     private string $number = '';
@@ -46,7 +46,7 @@ class Invoice implements \JsonSerializable
     /**
      * Invoice type.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     private int $type = InvoiceType::BILL;
@@ -54,7 +54,7 @@ class Invoice implements \JsonSerializable
     /**
      * Invoice status.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     private int $status = InvoiceStatus::DRAFT;
@@ -62,7 +62,7 @@ class Invoice implements \JsonSerializable
     /**
      * Invoice created at.
      *
-     * @var   null|\DateTime
+     * @var null|\DateTime
      * @since 1.0.0
      */
     private ?\DateTime $createdAt = null;
@@ -70,7 +70,7 @@ class Invoice implements \JsonSerializable
     /**
      * Invoice send at.
      *
-     * @var   null|\DateTime
+     * @var null|\DateTime
      * @since 1.0.0
      */
     private ?\DateTime $send = null;
@@ -106,7 +106,7 @@ class Invoice implements \JsonSerializable
     /**
      * Person refering for this order.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     private int $referer = 0;
@@ -148,7 +148,7 @@ class Invoice implements \JsonSerializable
     /**
      * Reference to other invoice (delivery note/credit note etc).
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     private int $reference = 0;
diff --git a/Models/InvoiceElement.php b/Models/InvoiceElement.php
index 97591ae..6b1a1e1 100644
--- a/Models/InvoiceElement.php
+++ b/Models/InvoiceElement.php
@@ -29,7 +29,7 @@ class InvoiceElement implements \JsonSerializable
     /**
      * ID.
      *
-     * @var   int
+     * @var int
      * @since 1.0.0
      */
     protected int $id = 0;
diff --git a/Models/InvoiceMapper.php b/Models/InvoiceMapper.php
index 08a2c7a..e78f4ee 100644
--- a/Models/InvoiceMapper.php
+++ b/Models/InvoiceMapper.php
@@ -29,7 +29,7 @@ final class InvoiceMapper extends DataMapperAbstract
     /**
      * Primary field name.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     protected static string $primaryField = 'billing_invoice_id';
@@ -37,7 +37,7 @@ final class InvoiceMapper extends DataMapperAbstract
     /**
      * Primary table.
      *
-     * @var   string
+     * @var string
      * @since 1.0.0
      */
     protected static string $table = 'billing_invoice';