diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index a58aaef..d4d95eb 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -97,15 +97,17 @@
 			return;
 		}
 
-		$config = array();
 		$CI =& get_instance();
 
 		if ($CI->config->load('redis', TRUE, TRUE))
 		{
-			$config = $CI->config->item('redis');
+			$config = array_merge(self::$_default_config, $CI->config->item('redis'));
+		}
+		else
+		{
+			$config = self::$_default_config;
 		}
 
-		$config = array_merge(self::$_default_config, $config);
 		$this->_redis = new Redis();
 
 		try