diff --git a/Mage/FPC/Plugin/CacheIdentifierPlugin.php b/Mage/FPC/Plugin/CacheIdentifierPlugin.php
index e428faf..f0119a3 100644
--- a/Mage/FPC/Plugin/CacheIdentifierPlugin.php
+++ b/Mage/FPC/Plugin/CacheIdentifierPlugin.php
@@ -4,6 +4,10 @@
 
 class CacheIdentifierPlugin
 {
+
+    protected $designExceptions;
+    protected $request;
+    protected $config;
     /**
      * Constructor
      *