diff --git a/src/Renderer.php b/src/Renderer.php
index 9a09ee4..8e1dc62 100644
--- a/src/Renderer.php
+++ b/src/Renderer.php
@@ -174,7 +174,7 @@ class Renderer
      * @var array
      * 
      */
-    public $multi_escape_prevention_guard = array();
+    protected $multi_escape_prevention_guard = array();
 
     /**
      *