diff --git a/src/Core/Cache/CacheDriverFactory.php b/src/Core/Cache/CacheDriverFactory.php
index 8fbdc1549e..307f52a2ea 100644
--- a/src/Core/Cache/CacheDriverFactory.php
+++ b/src/Core/Cache/CacheDriverFactory.php
@@ -24,20 +24,20 @@ class CacheDriverFactory
 
 		switch ($driver) {
 			case 'memcache':
-				$memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
-				$memcache_port = Config::get('system', 'memcache_port', 11211);
+				$memcache_host = Config::get('system', 'memcache_host');
+				$memcache_port = Config::get('system', 'memcache_port');
 
 				return new MemcacheCacheDriver($memcache_host, $memcache_port);
 				break;
 
 			case 'memcached':
-				$memcached_hosts = Config::get('system', 'memcached_hosts', [['127.0.0.1', 11211]]);
+				$memcached_hosts = Config::get('system', 'memcached_hosts');
 
 				return new MemcachedCacheDriver($memcached_hosts);
 				break;
 			case 'redis':
-				$redis_host = Config::get('system', 'redis_host', '127.0.0.1');
-				$redis_port = Config::get('system', 'redis_port', 6379);
+				$redis_host = Config::get('system', 'redis_host');
+				$redis_port = Config::get('system', 'redis_port');
 
 				return new RedisCacheDriver($redis_host, $redis_port);
 				break;
diff --git a/src/Core/Cache/MemcachedCacheDriver.php b/src/Core/Cache/MemcachedCacheDriver.php
index 8b752fb3a8..4397892a9e 100644
--- a/src/Core/Cache/MemcachedCacheDriver.php
+++ b/src/Core/Cache/MemcachedCacheDriver.php
@@ -41,7 +41,9 @@ class MemcachedCacheDriver extends AbstractCacheDriver implements IMemoryCacheDr
 		$this->memcached = new Memcached();
 
 		array_walk($memcached_hosts, function (&$value) {
-			$value = array_map('trim', explode(',', $value));
+			if (is_string($value)) {
+				$value = array_map('trim', explode(',', $value));
+			}
 		});
 
 		$this->memcached->addServers($memcached_hosts);