diff --git a/TransactionBuilder.js b/TransactionBuilder.js
index 7ef7ac828..bd91648fa 100644
--- a/TransactionBuilder.js
+++ b/TransactionBuilder.js
@@ -110,6 +110,7 @@ function TransactionBuilder(opts) {
 
   this.tx         = {};
   this.inputsSigned= 0;
+  this.signaturesAdded= 0;
 
   return this;
 }
@@ -482,7 +483,7 @@ TransactionBuilder.prototype._signPubKey = function(walletKeyMap, input, txSigHa
   var scriptSig = new Script();
   scriptSig.chunks.push(sig);
   scriptSig.updateBuffer();
-  return {isFullySigned: true, signaturesAdded: true, script: scriptSig.getBuffer()};
+  return {isFullySigned: true, signaturesAdded: 1, script: scriptSig.getBuffer()};
 };
 
 TransactionBuilder.prototype._signPubKeyHash = function(walletKeyMap, input, txSigHash) {
@@ -501,7 +502,7 @@ TransactionBuilder.prototype._signPubKeyHash = function(walletKeyMap, input, txS
   scriptSig.chunks.push(sig);
   scriptSig.chunks.push(wk.privKey.public);
   scriptSig.updateBuffer();
-  return {isFullySigned: true, signaturesAdded: true, script: scriptSig.getBuffer()};
+  return {isFullySigned: true, signaturesAdded: 1, script: scriptSig.getBuffer()};
 };
 
 // FOR TESTING
@@ -577,7 +578,7 @@ TransactionBuilder.prototype._signMultiSig = function(walletKeyMap, input, txSig
     originalScriptBuf = this.tx.ins[input.i].s;
 
   var scriptSig = new Script (originalScriptBuf);
-  var signaturesAdded = false;
+  var signaturesAdded = 0;
 
   for(var j=0; j<l && scriptSig.countMissingSignatures(); j++) {
     var wk = this._findWalletKey(walletKeyMap, {pubKeyBuf: pubkeys[j]});
@@ -586,7 +587,7 @@ TransactionBuilder.prototype._signMultiSig = function(walletKeyMap, input, txSig
     var newScriptSig = this._updateMultiSig(wk, scriptSig, txSigHash, nreq);
     if (newScriptSig) {
       scriptSig = newScriptSig;
-      signaturesAdded = true;
+      signaturesAdded++;
     }
   }
 
@@ -694,6 +695,7 @@ TransactionBuilder.prototype.sign = function(keys) {
     if (ret && ret.script) {
       tx.ins[i].s = ret.script;
       if (ret.isFullySigned) this.inputsSigned++;
+      if (ret.signaturesAdded) this.signaturesAdded +=ret.signaturesAdded;
     }
   }
   return this;
diff --git a/test/test.TransactionBuilder.js b/test/test.TransactionBuilder.js
index e8804d0a4..ae0cd963c 100644
--- a/test/test.TransactionBuilder.js
+++ b/test/test.TransactionBuilder.js
@@ -605,36 +605,43 @@ describe('TransactionBuilder', function() {
     var k2 = testdata.dataUnspentSign.keyStringsP2sh.slice(1,2);
     var k5 = testdata.dataUnspentSign.keyStringsP2sh.slice(4,5);
     b.isFullySigned().should.equal(false);
+    b.signaturesAdded.should.equal(0);
 
     b.sign(k1);
     b.isFullySigned().should.equal(false);
+    b.signaturesAdded.should.equal(1);
 
     var tx = b.build();
     tx.ins.length.should.equal(1);
     tx.outs.length.should.equal(2);
     tx.isComplete().should.equal(false);
+    b.signaturesAdded.should.equal(1);
 
     // Sign with the same
     b.sign(k1);
     b.isFullySigned().should.equal(false);
     tx.isComplete().should.equal(false);
+    b.signaturesAdded.should.equal(1);
 
     // Sign with k5
     b.sign(k5);
 ///
     b.isFullySigned().should.equal(false);
     tx.isComplete().should.equal(false);
+    b.signaturesAdded.should.equal(2);
 
     // Sign with same
     b.sign(k5);
     b.isFullySigned().should.equal(false);
     tx.isComplete().should.equal(false);
+    b.signaturesAdded.should.equal(2);
 
 
     // Sign k2
     b.sign(k2);
     b.isFullySigned().should.equal(true);
     tx.isComplete().should.equal(true);
+    b.signaturesAdded.should.equal(3);
   });
 
   it('should sign in steps a p2sh/p2pubkeyhash tx', function() {