diff --git a/lib/errors/spec.js b/lib/errors/spec.js
index 03eabc4..dd46d6f 100644
--- a/lib/errors/spec.js
+++ b/lib/errors/spec.js
@@ -85,16 +85,16 @@ module.exports = [{
     name: 'InvalidSatoshis',
     message: 'Output satoshis are invalid',
   }, {
-    name: 'Fee',
+    name: 'FeeError',
     message: 'Internal Error on Fee {0}',
     errors: [{
-      name: 'TooSmallError',
+      name: 'TooSmall',
       message: 'Fee is too small: {0}',
     }, {
-      name: 'TooLargeError',
+      name: 'TooLarge',
       message: 'Fee is too large: {0}',
     }, {
-      name: 'DifferentError',
+      name: 'Different',
       message: 'Unspent value is different from specified fee: {0}',
     }]
   }, {
diff --git a/lib/transaction/transaction.js b/lib/transaction/transaction.js
index 9890cf9..47c8ff5 100644
--- a/lib/transaction/transaction.js
+++ b/lib/transaction/transaction.js
@@ -203,16 +203,16 @@ Transaction.prototype.getSerializationError = function(opts) {
   var isFullySigned = this.isFullySigned();
 
   if (!opts.disableDifferentFees && feeIsDifferent) {
-    return new errors.Transaction.Fee.DifferentError(feeIsDifferent);
+    return new errors.Transaction.FeeError.Different(feeIsDifferent);
   }
   if (!opts.disableLargeFees && feeIsTooLarge) {
     if (missingChange) {
       return new errors.Transaction.ChangeAddressMissing('Fee is too large and no change address was provided');
     }
-    return new errors.Transaction.Fee.TooLargeError(feeIsTooLarge);
+    return new errors.Transaction.FeeError.TooLarge(feeIsTooLarge);
   }
   if (!opts.disableSmallFees && feeIsTooSmall) {
-    return new errors.Transaction.Fee.TooSmallError(feeIsTooSmall);
+    return new errors.Transaction.FeeError.TooSmall(feeIsTooSmall);
   }
   if (!opts.disableDustOutputs && this._hasDustOutputs()) {
     return new errors.Transaction.DustOutputs();
diff --git a/test/transaction/transaction.js b/test/transaction/transaction.js
index 18c8e71..dd38f8f 100644
--- a/test/transaction/transaction.js
+++ b/test/transaction/transaction.js
@@ -266,7 +266,7 @@ describe('Transaction', function() {
         .sign(privateKey);
       expect(function() {
         return transaction.serialize();
-      }).to.throw(errors.Transaction.Fee.TooSmallError);
+      }).to.throw(errors.Transaction.FeeError.TooSmall);
     });
     it('on second call to sign, change is not recalculated', function() {
       var transaction = new Transaction()
@@ -332,7 +332,7 @@ describe('Transaction', function() {
         .to(toAddress, 40000000);
       expect(function() {
         return transaction.serialize();
-      }).to.throw(errors.Transaction.Fee.TooLargeError);
+      }).to.throw(errors.Transaction.FeeError.TooLarge);
     });
     it('fails if a dust output is created', function() {
       var transaction = new Transaction()
@@ -372,7 +372,7 @@ describe('Transaction', function() {
         .sign(privateKey);
       expect(function() {
         return transaction.serialize();
-      }).to.throw(errors.Transaction.Fee.DifferentError);
+      }).to.throw(errors.Transaction.FeeError.Different);
     });
     describe('skipping checks', function() {
       var buildSkipTest = function(builder, check) {