diff --git a/src/Ray/Aop/Compiler.php b/src/Ray/Aop/Compiler.php
index <HASH>..<HASH> 100644
--- a/src/Ray/Aop/Compiler.php
+++ b/src/Ray/Aop/Compiler.php
@@ -25,6 +25,11 @@ use TokenReflection\ReflectionParameter;
 final class Compiler implements CompilerInterface
 {
     /**
+     * @var string
+     */
+    public $classDir;
+
+    /**
      * @var \PHPParser_Parser
      */
     private $parser;
@@ -35,11 +40,6 @@ final class Compiler implements CompilerInterface
     private $factory;
 
     /**
-     * @var string
-     */
-    private $classDir;
-
-    /**
      * @param null                            $classDir
      * @param PHPParser_Parser                $parser
      * @param PHPParser_BuilderFactory        $factory
be public for Compilser::$classDir property