diff --git a/lib/parse_udp.js b/lib/parse_udp.js
index 1a28160..d46ca4e 100644
--- a/lib/parse_udp.js
+++ b/lib/parse_udp.js
@@ -35,7 +35,7 @@ function parseUdpRequest (msg, rinfo) {
       ? ipLib.toString(ip)
       : rinfo.address
 
-    params.key = msg.readUInt32BE(88) // TODO: what is this for?
+    params.key = msg.readUInt32BE(88) // Optional: unique random key from client
 
     // never send more than MAX_ANNOUNCE_PEERS or else the UDP packet will get bigger than
     // 512 bytes which is not safe
diff --git a/test/server.js b/test/server.js
index c68048c..ef1253e 100644
--- a/test/server.js
+++ b/test/server.js
@@ -49,11 +49,13 @@ function serverTest (t, serverType, serverFamily) {
       t.equal(data.complete, 0)
       t.equal(data.incomplete, 1)
 
+      var swarm = server.getSwarm(infoHash)
+
       t.equal(Object.keys(server.torrents).length, 1)
-      t.equal(server.getSwarm(infoHash).complete, 0)
-      t.equal(server.getSwarm(infoHash).incomplete, 1)
-      t.equal(Object.keys(server.getSwarm(infoHash).peers).length, 1)
-      t.deepEqual(server.getSwarm(infoHash).peers[clientAddr + ':6881'], {
+      t.equal(swarm.complete, 0)
+      t.equal(swarm.incomplete, 1)
+      t.equal(Object.keys(swarm.peers).length, 1)
+      t.deepEqual(swarm.peers[clientAddr + ':6881'], {
         ip: clientIp,
         port: 6881,
         peerId: peerId.toString('hex'),