diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index 19fbdc0cae..4007cb0caa 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -226,6 +226,10 @@ public function save($id, $data, $ttl = 60, $raw = FALSE)
 			$this->_redis->{static::$_sRemove_name}('_ci_redis_serialized', $id);
 		}
 
+		if ($ttl) {
+			$this->_redis->expireAt($id, time() + $ttl);
+		}
+		
 		return TRUE;
 	}