diff --git a/interface/lib/classes/session.inc.php b/interface/lib/classes/session.inc.php
index de00d13c90fc956429d7ce49e5042584bbb56056..7ec2955d0be27b5c4e2bd995859f7b3383ac69d5 100644
--- a/interface/lib/classes/session.inc.php
+++ b/interface/lib/classes/session.inc.php
@@ -43,7 +43,7 @@ class session {
 	
 	function close () {
 
-		if (!empty($this->fieldarray)) {
+		if (!empty($this->session_array)) {
             $result = $this->gc(ini_get('session.gc_maxlifetime'));
             return $result;
         }