diff --git a/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php b/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
index e19bb755e..334bbb3ed 100644
--- a/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
+++ b/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
@@ -28,7 +28,7 @@ class MemoryCache extends AbstractCache
      */
     public function __construct()
     {
-        parent::__construct();
+        parent::__construct('', 300);
     }
 
     public function doGet($key, $miss)