diff --git a/README.md b/README.md
index 6011aa6..ee29c45 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 php-ratelimiter
 ===============
 
-A small class that uses Memcache to allow only a certain number of requests per a certain amount of minutes.
+> NOTE: this was previously working with memcache, but I adjusted it to work with memcached (with a d).
+
+A small class that uses Memcached to allow only a certain number of requests per a certain amount of minutes.
 
 The class works around the problem that the timeframe is constantly moving, i.e. every new minute the timeframe is different. See my [blogpost](http://alexander.kirk.at/2013/04/19/add-a-rate-limit-to-your-website/).
 
@@ -11,7 +13,7 @@ Usage
 -----
 
 ```php
-$rateLimiter = new RateLimiter(new Memcache(), $_SERVER["REMOTE_ADDR"]);
+$rateLimiter = new RateLimiter($_SERVER["REMOTE_ADDR"]);
 try {
 	// allow a maximum of 100 requests for the IP in 5 minutes
 	$rateLimiter->limitRequestsInMinutes(100, 5);
@@ -30,10 +32,10 @@ If you want to protect multiple resources with different limits, use the third p
 
 ```php
 // script1.php
-$rateLimiter = new RateLimiter(new Memcache(), $_SERVER["REMOTE_ADDR"], "script1");
+$rateLimiter = new RateLimiter($_SERVER["REMOTE_ADDR"], "script1");
 try { ... }
 // script2.php
-$rateLimiter = new RateLimiter(new Memcache(), $_SERVER["REMOTE_ADDR"], "script2");
+$rateLimiter = new RateLimiter($_SERVER["REMOTE_ADDR"], "script2");
 try { ... }
 ```
 
diff --git a/ratelimiter.php b/ratelimiter.php
index 24bb875..8c2e5fe 100644
--- a/ratelimiter.php
+++ b/ratelimiter.php
@@ -27,9 +27,10 @@
 class RateExceededException extends Exception {}
 
 class RateLimiter {
-	private $prefix, $memcache;
-	public function __construct(Memcache $memcache, $ip, $prefix = "rate") {
-		$this->memcache = $memcache;
+	private $prefix, $memcached;
+	public function __construct($ip, $prefix = "rate", $port=11211) {
+		$this->memcached = new Memcached();
+        $this->memcached->addServer('localhost', $port);
 		$this->prefix = $prefix . $ip;
 	}
 
@@ -37,21 +38,21 @@ public function limitRequestsInMinutes($allowedRequests, $minutes) {
 		$requests = 0;
 
 		foreach ($this->getKeys($minutes) as $key) {
-			$requestsInCurrentMinute = $this->memcache->get($key);
+			$requestsInCurrentMinute = $this->memcached->get($key);
 			if (false !== $requestsInCurrentMinute) $requests += $requestsInCurrentMinute;
 		}
 
 		if (false === $requestsInCurrentMinute) {
-			$this->memcache->set($key, 1, 0, $minutes * 60 + 1);
+			$this->memcached->set($key, 1, ($minutes + 1) * 60);
 		} else {
-			$this->memcache->increment($key, 1);
+			$this->memcached->increment($key);
 		}
 
 		if ($requests > $allowedRequests) throw new RateExceededException;
 	}
 
 	private function getKeys($minutes) {
-		$keys = array();
+		$keys = [];
 		$now = time();
 		for ($time = $now - $minutes * 60; $time <= $now; $time += 60) {
 			$keys[] = $this->prefix . date("dHi", $time);
@@ -60,3 +61,4 @@ private function getKeys($minutes) {
 		return $keys;
 	}
 }
+