diff --git a/inc/cache.php b/inc/cache.php
index d26f9201..182d6fda 100644
--- a/inc/cache.php
+++ b/inc/cache.php
@@ -15,10 +15,18 @@ class Cache {
 
 		switch ($config['cache']['enabled']) {
 			case 'memcached':
-				return new MemcachedCacheDriver(
-					$config['cache']['prefix'],
-					$config['cache']['memcached']
-				);
+				$prefix = $config['cache']['prefix'];
+				$uri = $config['cache']['memcached'][0];
+				$port = 0;
+				$weight = 0;
+				if (isset($config['cache']['memcached'][1]) && $config['cache']['memcached'][1] !== null) {
+					$port = \intval($config['cache']['memcached'][1]);
+				}
+				if (isset($config['cache']['memcached'][2]) && $config['cache']['memcached'][2] !== null) {
+					$weight = \intval($config['cache']['memcached'][2]);
+				}
+
+				return new MemcachedCacheDriver($prefix, $uri, $port, $weight);
 			case 'redis':
 				$port = $config['cache']['redis'][1];
 				$port = empty($port) ? null : intval($port);