diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index 5d42905..8c650ff 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -47,6 +47,7 @@
 	 */
 	protected static $_default_config = array(
 		'host' => '127.0.0.1',
+		'password' => null,
 		'port' => 6379,
 		'timeout' => 0
 	);
@@ -206,6 +207,10 @@
 		{
 			show_error('Redis connection refused. ' . $e->getMessage());
 		}
+
+		if (isset($config['password'])) {
+			$this->_redis->auth($config['password']);
+		}
 	}
 
 }