diff --git a/inc/cache.php b/inc/cache.php
index a8428846..de85ecd1 100644
--- a/inc/cache.php
+++ b/inc/cache.php
@@ -99,7 +99,7 @@ class Cache {
 			case 'redis':
 				if (!self::$cache)
 					self::init();
-				self::$cache->setex($key, $expires, json_encode($value));
+				self::$cache->setEx($key, $expires, json_encode($value));
 				break;
 			case 'apc':
 				apc_store($key, $value, $expires);