diff --git a/lib/net/pool.js b/lib/net/pool.js
index b4d57bc9..40896e52 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -587,7 +587,6 @@ Pool.prototype.stopSync = function stopSync() {
  */
 
 Pool.prototype.sendSync = co(function* sendSync(peer) {
-  var tip = this.chain.tip;
   var locator;
 
   if (!this.syncing)
diff --git a/lib/utils/ip.js b/lib/utils/ip.js
index 86456117..81ffa50f 100644
--- a/lib/utils/ip.js
+++ b/lib/utils/ip.js
@@ -24,7 +24,6 @@ var RFC6052 = new Buffer('0064ff9b0000000000000000', 'hex');
 var RFC4862 = new Buffer('fe80000000000000', 'hex');
 var RFC6145 = new Buffer('0000000000000000ffff0000', 'hex');
 var TOR_ONION = new Buffer('fd87d87eeb43', 'hex');
-var V4MAP = new Buffer('00000000000000000000ffff', 'hex');
 var SHIFTED = new Buffer('00000000000000ffff', 'hex');
 
 var IPV4_REGEX = /^(\d{1,3}\.){3}\d{1,3}$/;