diff --git a/src/Backend.php b/src/Backend.php
index 7ab9df8..377a7fc 100644
--- a/src/Backend.php
+++ b/src/Backend.php
@@ -30,14 +30,14 @@ class Backend extends dcNsProcess
 {
     public static function init(): bool
     {
-        self::$init = defined('DC_CONTEXT_ADMIN');
+        static::$init = defined('DC_CONTEXT_ADMIN');
 
-        return self::$init;
+        return static::$init;
     }
 
     public static function process(): bool
     {
-        if (!self::$init) {
+        if (!static::$init) {
             return false;
         }
 
diff --git a/src/Frontend.php b/src/Frontend.php
index 1de7af3..9525894 100644
--- a/src/Frontend.php
+++ b/src/Frontend.php
@@ -22,14 +22,14 @@ class Frontend extends dcNsProcess
 {
     public static function init(): bool
     {
-        self::$init = defined('DC_RC_PATH');
+        static::$init = defined('DC_RC_PATH');
 
-        return self::$init;
+        return static::$init;
     }
 
     public static function process(): bool
     {
-        if (!self::$init) {
+        if (!static::$init) {
             return false;
         }
 
diff --git a/src/Prepend.php b/src/Prepend.php
index 1d8277b..c42d964 100644
--- a/src/Prepend.php
+++ b/src/Prepend.php
@@ -21,14 +21,14 @@ class Prepend extends dcNsProcess
 {
     public static function init(): bool
     {
-        self::$init = true;
+        static::$init = true;
 
-        return self::$init;
+        return static::$init;
     }
 
     public static function process(): bool
     {
-        if (!self::$init) {
+        if (!static::$init) {
             return false;
         }