diff --git a/system/libraries/Session/drivers/Session_database_driver.php b/system/libraries/Session/drivers/Session_database_driver.php
index e27c965..055a1a6 100644
--- a/system/libraries/Session/drivers/Session_database_driver.php
+++ b/system/libraries/Session/drivers/Session_database_driver.php
@@ -200,7 +200,7 @@
 			$this->_db->where('ip_address', $_SERVER['REMOTE_ADDR']);
 		}
 
-		$update_data = array('timestamp' => $time);
+		$update_data = array('timestamp' => time());
 		if ($this->_fingerprint !== md5($session_data))
 		{
 			$update_data['data'] = ($this->_platform === 'postgre')