diff --git a/lib/http/rpc.js b/lib/http/rpc.js
index e24bf509..428e9453 100644
--- a/lib/http/rpc.js
+++ b/lib/http/rpc.js
@@ -370,7 +370,7 @@ RPC.prototype.getnetworkinfo = function getnetworkinfo(args, callback) {
 };
 
 RPC.prototype.addnode = function addnode(args, callback) {
-  var i, node, cmd, host, seed, peer;
+  var i, node, cmd, seed, addr, peer;
 
   if (args.help || args.length !== 2)
     return callback(new RPCError('addnode "node" "add|remove|onetry"'));
@@ -1422,7 +1422,7 @@ RPC.prototype.verifychain = function verifychain(args, callback) {
 
 RPC.prototype._submitwork = function getwork(data, callback) {
   var attempt = this.attempt;
-  var data, block, header, cb;
+  var block, header, cb;
 
   if (data.length !== 128)
     return callback(new RPCError('Invalid parameter.'));
@@ -1466,7 +1466,7 @@ RPC.prototype._submitwork = function getwork(data, callback) {
 };
 
 RPC.prototype._getwork = function _getwork(callback) {
-  var i, data, abbr;
+  var data, abbr;
 
   this._getAttempt(true, function(err, attempt) {
     if (err)
@@ -1499,7 +1499,6 @@ RPC.prototype.getworklp = function getworklp(args, callback) {
 };
 
 RPC.prototype.getwork = function getwork(args, callback) {
-  var self = this;
   var data;
 
   callback = this.locker.lock(getwork, [args, callback]);
@@ -1559,8 +1558,8 @@ RPC.prototype.getblocktemplate = function getblocktemplate(args, callback) {
   var mode = 'template';
   var version = -1;
   var coinbase = true;
-  var i, opt, lpid, keys, rules;
-  var cap, coinbasevalue, coinbasetxn;
+  var i, opt, lpid, rules, cap, block;
+  var coinbasevalue, coinbasetxn;
 
   if (args.help || args.length > 1)
     return callback(new RPCError('getblocktemplate ( "jsonrequestobject" )'));
@@ -2022,7 +2021,6 @@ RPC.prototype.setgenerate = function setgenerate(args, callback) {
 };
 
 RPC.prototype.generate = function generate(args, callback) {
-  var self = this;
   var numblocks;
 
   callback = this.locker.lock(generate, [args, callback]);
@@ -2038,7 +2036,8 @@ RPC.prototype.generate = function generate(args, callback) {
   this._generate(numblocks, callback);
 };
 
-RPC.prototype._generate = function _generate(numblock, callback, force) {
+RPC.prototype._generate = function _generate(numblocks, callback, force) {
+  var self = this;
   var hashes = [];
 
   utils.forRangeSerial(0, numblocks, function(i, next) {
diff --git a/lib/net/peer.js b/lib/net/peer.js
index 1b6a4254..fb3e18dd 100644
--- a/lib/net/peer.js
+++ b/lib/net/peer.js
@@ -754,7 +754,7 @@ Peer.prototype.send = function send(packet) {
     tx = packet.tx;
     if (packet.witness) {
       if (!tx.isCoinbase())
-        checksum = tx.witnessHash()
+        checksum = tx.witnessHash();
     } else {
       checksum = tx.hash();
     }