diff --git a/src/PhpDocumentLoader.php b/src/PhpDocumentLoader.php
index b6c04cb..728225d 100644
--- a/src/PhpDocumentLoader.php
+++ b/src/PhpDocumentLoader.php
@@ -24,7 +24,7 @@ class PhpDocumentLoader
     /**
      * @var ContentRetriever
      */
-    private $contentRetriever;
+    public $contentRetriever;
 
     /**
      * @var ProjectIndex