diff --git a/lib/net/authorize/util/Log.php b/lib/net/authorize/util/Log.php
index a75787ce..bb29faa1 100644
--- a/lib/net/authorize/util/Log.php
+++ b/lib/net/authorize/util/Log.php
@@ -31,6 +31,7 @@ class Log
     private $sensitiveXmlTags = NULL;
     private $logFile = '';
     private $logLevel = ANET_LOG_LEVEL;
+    private $sensitiveStringRegexes = NULL;
 	
 	/**
 	* Takes a regex pattern (string) as argument and adds the forward slash delimiter.