diff --git a/lib/bcoin/ldb.js b/lib/bcoin/ldb.js
index 7d7fc71f..3b2c5a3c 100644
--- a/lib/bcoin/ldb.js
+++ b/lib/bcoin/ldb.js
@@ -96,11 +96,8 @@ function LowlevelUp(file, options) {
 
   // Stay as close to the metal as possible.
   // We want to make calls to C++ directly.
-  if (this.db.db && this.db.db.put) {
+  while (this.db.db && this.db.db.put)
     this.db = this.db.db;
-    if (this.db.db && this.db.db.put)
-      this.db = this.db.db;
-  }
 
   this.binding = this.db;
   this.hasBinding = false;
diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index 505a81a9..d48e3fe5 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -1810,7 +1810,7 @@ Script.isMultisigInput = function isMultisigInput(code, keys, isWitness) {
   // it may look like multisig. This is
   // strange because it's technically a
   // recursive call.
-  if (Script.isScripthashInput(null, isWitness))
+  if (Script.isScripthashInput(code, null, isWitness))
     return false;
 
   if (code.length < 3)
@@ -1895,11 +1895,10 @@ Script.prototype.getCoinbaseData = function getCoinbaseData() {
     script: this
   };
 
-  if (Buffer.isBuffer(this.code[0]) && this.code[0].length <= 6) {
+  if (Buffer.isBuffer(this.code[0]) && this.code[0].length <= 6)
     coinbase.height = new bn(this.code[0], 'le').toNumber();
-  } else {
+  else
     coinbase.height = -1;
-  }
 
   if (Buffer.isBuffer(this.code[1]))
     coinbase.extraNonce = new bn(this.code[1], 'le');
@@ -1911,11 +1910,12 @@ Script.prototype.getCoinbaseData = function getCoinbaseData() {
   });
 
   coinbase.flags = flags;
-  coinbase.text =
-    flags.map(function(flag) {
-      return flag.toString('utf8');
-    }).join('')
-    .replace(/[\u0000-\u0019\u007f-\u00ff]/g, '');
+
+  flags = flags.map(function(flag) {
+    return flag.toString('utf8');
+  });
+
+  coinbase.text = flags.join('').replace(/[\u0000-\u0019\u007f-\u00ff]/g, '');
 
   return coinbase;
 };
@@ -2214,9 +2214,9 @@ Script.prototype.isPushOnly = function isPushOnly() {
 };
 
 Script.prototype.getSigops = function getSigops(accurate) {
-  var i, op;
   var total = 0;
   var lastOp = -1;
+  var i, op;
 
   for (i = 0; i < this.code.length; i++) {
     op = this.code[i];
diff --git a/lib/bcoin/utils.js b/lib/bcoin/utils.js
index 9ce5b2be..e1609721 100644
--- a/lib/bcoin/utils.js
+++ b/lib/bcoin/utils.js
@@ -773,7 +773,7 @@ utils.array2ip = function array2ip(ip, version) {
   ip = utils.ip2version(ip, version);
 
   if (version === 4)
-    return Array.prototype.slice.call(ip).join('.');
+    return ip[0] + '.' + ip[1] + '.' + ip[2] + '.' + ip[3];
 
   if (version === 6) {
     out = [];