diff --git a/src/Install.php b/src/Install.php
index 2945e25..84e444e 100644
--- a/src/Install.php
+++ b/src/Install.php
@@ -30,14 +30,14 @@ class Install extends dcNsProcess
 
     public static function init(): bool
     {
-        self::$init = defined('DC_CONTEXT_ADMIN') && dcCore::app()->newVersion(My::id(), dcCore::app()->plugins->moduleInfo(My::id(), 'version'));
+        static::$init = defined('DC_CONTEXT_ADMIN') && dcCore::app()->newVersion(My::id(), dcCore::app()->plugins->moduleInfo(My::id(), 'version'));
 
-        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 f0c227e..6d6ce06 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;
         }
 
diff --git a/src/Uninstall.php b/src/Uninstall.php
index 7896269..65fcc71 100644
--- a/src/Uninstall.php
+++ b/src/Uninstall.php
@@ -20,14 +20,14 @@ class Uninstall
 
     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($uninstaller): ?bool
     {
-        if (!self::$init) {
+        if (!static::$init) {
             return false;
         }