diff --git a/system/libs/items.php b/system/libs/items.php
index e652d4e8..bc8f4716 100644
--- a/system/libs/items.php
+++ b/system/libs/items.php
@@ -41,7 +41,7 @@ class Items
 
 		require_once LIBS . 'cache_php.php';
 		$cache_php = new Cache_PHP(config('cache_prefix'), CACHE);
-		$cache_php->set('items', $items);
+		$cache_php->set('items', $items, 5 * 365 * 24 * 60 * 60);
 		return true;
 	}