diff --git a/src/ContainerCompiled.php b/src/ContainerCompiled.php
index 4b9466d..ae72ce4 100644
--- a/src/ContainerCompiled.php
+++ b/src/ContainerCompiled.php
@@ -57,7 +57,7 @@ public function get(string $id): object
          *
          * @psalm-suppress MixedMethodCall
          */
-        $instance = new $proxyClass($this);
+        $instance = new $proxyClass($this->decorated);
 
         return $instance;
     }
diff --git a/src/Proxy/ProxyFactory.php b/src/Proxy/ProxyFactory.php
index 64312c3..1309ed8 100644
--- a/src/Proxy/ProxyFactory.php
+++ b/src/Proxy/ProxyFactory.php
@@ -200,10 +200,8 @@ private function createProxyClass(
         string $methods,
         bool $isInterface,
     ): string {
-        $template = "final readonly class %s %s %s
+        $template = "final %s class %s %s %s
 {
-    private ?%s \$_proxiedObject;
-
     public function __construct(
         private \Psr\Container\ContainerInterface \$container
     ) {
@@ -222,11 +220,11 @@ private function _proxied(): %s
 
         return \sprintf(
             $template,
+            $classRef->isReadOnly() ? 'readonly' : '',
             $proxyClassName,
             $isInterface ? 'implements' : 'extends',
             $fullClassName,
             $fullClassName,
-            $fullClassName,
             $this->createProxyClassConstructor($classRef),
             $methods
         );