diff --git a/inc/Readability.php b/inc/Readability.php
index 19298c132..2ce90f6dd 100644
--- a/inc/Readability.php
+++ b/inc/Readability.php
@@ -80,7 +80,7 @@ class Readability
 	public $debug = false;
 	protected $body = null; // 
 	protected $bodyCache = null; // Cache the body HTML in case we need to re-use it later
-	protected $flags =  Self::FLAG_CLEAN_CONDITIONALLY; // 1 | 2 | 4;   // Start with all flags set.
+	protected $flags =  self::FLAG_CLEAN_CONDITIONALLY; // 1 | 2 | 4;   // Start with all flags set.
 	protected $success = false; // indicates whether we were able to extract or not
 	
 	/**