diff --git a/htdocs/core/class/rssparser.class.php b/htdocs/core/class/rssparser.class.php
index 663bb96a7b6..6d83fd6d6da 100644
--- a/htdocs/core/class/rssparser.class.php
+++ b/htdocs/core/class/rssparser.class.php
@@ -36,6 +36,8 @@ class RssParser
 	 */
 	public $error = '';
 
+	public $feed_version;
+
 	private $_format = '';
 	private $_urlRSS;
 	private $_language;