diff --git a/Controller.php b/Controller.php
index c392d40..b4dcd17 100644
--- a/Controller.php
+++ b/Controller.php
@@ -43,7 +43,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string
      * @since 1.0.0
      */
-    /* public */ const MODULE_PATH = __DIR__;
+    public const MODULE_PATH = __DIR__;
 
     /**
      * Module version.
@@ -51,7 +51,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string
      * @since 1.0.0
      */
-    /* public */ const MODULE_VERSION = '1.0.0';
+    public const MODULE_VERSION = '1.0.0';
 
     /**
      * Module name.
@@ -59,7 +59,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string
      * @since 1.0.0
      */
-    /* public */ const MODULE_NAME = 'ProjectManagement';
+    public const MODULE_NAME = 'ProjectManagement';
 
     /**
      * Module id.
@@ -67,7 +67,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var int
      * @since 1.0.0
      */
-    /* public */ const MODULE_ID = 1001700000;
+    public const MODULE_ID = 1001700000;
 
     /**
      * Providing.
diff --git a/Models/ProgressType.php b/Models/ProgressType.php
index dc9c4d3..bec384d 100644
--- a/Models/ProgressType.php
+++ b/Models/ProgressType.php
@@ -26,9 +26,9 @@ use phpOMS\Stdlib\Base\Enum;
  */
 abstract class ProgressType extends Enum
 {
-    /* public */ const MANUAL      = 0;
-    /* public */ const LINEAR      = 1;
-    /* public */ const EXPONENTIAL = 2;
-    /* public */ const LOG         = 3;
-    /* public */ const TASKS       = 4;
+    public const MANUAL      = 0;
+    public const LINEAR      = 1;
+    public const EXPONENTIAL = 2;
+    public const LOG         = 3;
+    public const TASKS       = 4;
 }
diff --git a/Models/ProjectResponsibility.php b/Models/ProjectResponsibility.php
index 9130f48..72c83d9 100644
--- a/Models/ProjectResponsibility.php
+++ b/Models/ProjectResponsibility.php
@@ -26,6 +26,6 @@ use phpOMS\Stdlib\Base\Enum;
  */
 abstract class ProjectResponsibility extends Enum
 {
-    /* public */ const MANAGER = 0;
-    /* public */ const OTHER   = 1;
+    public const MANAGER = 0;
+    public const OTHER   = 1;
 }
diff --git a/Models/ProjectStatus.php b/Models/ProjectStatus.php
index 56039cc..a40d8bf 100644
--- a/Models/ProjectStatus.php
+++ b/Models/ProjectStatus.php
@@ -26,9 +26,9 @@ use phpOMS\Stdlib\Base\Enum;
  */
 abstract class ProjectStatus extends Enum
 {
-    /* public */ const ACTIVE   = 0;
-    /* public */ const INACTIVE = 1;
-    /* public */ const HOLD     = 2;
-    /* public */ const CANCELED = 3;
-    /* public */ const FINISHED = 4;
+    public const ACTIVE   = 0;
+    public const INACTIVE = 1;
+    public const HOLD     = 2;
+    public const CANCELED = 3;
+    public const FINISHED = 4;
 }