diff --git a/lib/bcoin/wallet.js b/lib/bcoin/wallet.js
index 94ce3ae3..ffd2b828 100644
--- a/lib/bcoin/wallet.js
+++ b/lib/bcoin/wallet.js
@@ -1008,11 +1008,11 @@ Wallet.prototype.sign = function sign(tx, options, callback) {
   if (typeof options === 'string' || Buffer.isBuffer(options))
     options = { passphrase: options };
 
-  this.master.toKey(options.passphrase, options.timeout, function(err, master) {
+  this.deriveInputs(tx, function(err, addresses) {
     if (err)
       return callback(err);
 
-    self.deriveInputs(tx, function(err, addresses) {
+    self.master.toKey(options.passphrase, options.timeout, function(err, master) {
       if (err)
         return callback(err);