diff --git a/libraries/joomla/cache/storage/redis.php b/libraries/joomla/cache/storage/redis.php
index 6153dbe94dbef..36765e8ceb9a6 100644
--- a/libraries/joomla/cache/storage/redis.php
+++ b/libraries/joomla/cache/storage/redis.php
@@ -61,7 +61,7 @@ public function __construct($options = array())
 	 */
 	protected function getConnection()
 	{
-		if ($this->isSupported()) != true)
+		if (self::isSupported()) != true)
 		{
 			return false;
 		}