diff --git a/src/common/schemas/output/get-settings.json b/src/common/schemas/output/get-settings.json
index 32b0bd7f..4fbefeb9 100644
--- a/src/common/schemas/output/get-settings.json
+++ b/src/common/schemas/output/get-settings.json
@@ -77,8 +77,11 @@
       "description": "TODO"
     },
     "regularKey": {
-      "$ref": "address",
-      "description": "The public key of a new keypair, to use as the regular key to this account, as a base-58-encoded string in the same format as an account address."
+      "oneOf": [
+        {"$ref": "address"},
+        {"type": "null"}
+      ],
+      "description": "The public key of a new keypair, to use as the regular key to this account, as a base-58-encoded string in the same format as an account address. Use `null` to remove the regular key."
     }
   },
   "additionalProperties": false
diff --git a/src/transaction/settings.js b/src/transaction/settings.js
index 54d58c94..138e98d3 100644
--- a/src/transaction/settings.js
+++ b/src/transaction/settings.js
@@ -1,5 +1,6 @@
 /* @flow */
 'use strict';
+const _ = require('lodash');
 const assert = require('assert');
 const BigNumber = require('bignumber.js');
 const utils = require('./utils');
@@ -71,12 +72,15 @@ function convertTransferRate(transferRate: number | string): number | string {
 
 function createSettingsTransaction(account: string, settings: Settings
 ): Object {
-  if (settings.regularKey) {
-    return {
+  if (settings.regularKey !== undefined) {
+    const removeRegularKey = {
       TransactionType: 'SetRegularKey',
-      Account: account,
-      RegularKey: settings.regularKey
+      Account: account
     };
+    if (settings.regularKey === null) {
+      return removeRegularKey;
+    }
+    return _.assign({}, removeRegularKey, {RegularKey: settings.regularKey});
   }
 
   const txJSON: Object = {
diff --git a/test/api-test.js b/test/api-test.js
index 0eecbbce..3ce1deba 100644
--- a/test/api-test.js
+++ b/test/api-test.js
@@ -119,6 +119,13 @@ describe('RippleAPI', function() {
       _.partial(checkResult, responses.prepareSettings.regularKey, 'prepare'));
   });
 
+  it('prepareSettings - remove regularKey', function() {
+    const regularKey = {regularKey: null};
+    return this.api.prepareSettings(address, regularKey, instructions).then(
+      _.partial(checkResult, responses.prepareSettings.removeRegularKey,
+        'prepare'));
+  });
+
   it('prepareSettings - flag set', function() {
     const settings = {requireDestinationTag: true};
     return this.api.prepareSettings(address, settings, instructions).then(
diff --git a/test/fixtures/requests/compute-ledger-hash.json b/test/fixtures/requests/compute-ledger-hash.json
index cf8ff0d1..e2a76348 100644
--- a/test/fixtures/requests/compute-ledger-hash.json
+++ b/test/fixtures/requests/compute-ledger-hash.json
@@ -1,5 +1,4 @@
 {
-  "accepted": true,
   "stateHash": "D9ABF622DA26EEEE48203085D4BC23B0F77DC6F8724AC33D975DA3CA492D2E44",
   "closeTime": "2015-08-12T01:01:10.000Z",
   "parentCloseTime": "2015-08-12T01:01:00.000Z",
diff --git a/test/fixtures/responses/index.js b/test/fixtures/responses/index.js
index b2cf8c4e..c594dbcf 100644
--- a/test/fixtures/responses/index.js
+++ b/test/fixtures/responses/index.js
@@ -51,6 +51,7 @@ module.exports = {
   },
   prepareSettings: {
     regularKey: require('./prepare-settings-regular-key.json'),
+    removeRegularKey: require('./prepare-settings-remove-regular-key.json'),
     flags: require('./prepare-settings.json'),
     flagSet: require('./prepare-settings-flag-set.json'),
     flagClear: require('./prepare-settings-flag-clear.json'),
diff --git a/test/fixtures/responses/prepare-settings-remove-regular-key.json b/test/fixtures/responses/prepare-settings-remove-regular-key.json
new file mode 100644
index 00000000..650a918d
--- /dev/null
+++ b/test/fixtures/responses/prepare-settings-remove-regular-key.json
@@ -0,0 +1,8 @@
+{
+  "txJSON": "{\"Flags\":2147483648,\"TransactionType\":\"SetRegularKey\",\"Account\":\"r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59\",\"LastLedgerSequence\":8820051,\"Fee\":\"12\",\"Sequence\":23}",
+  "instructions": {
+    "fee": "0.000012",
+    "sequence": 23,
+    "maxLedgerVersion": 8820051
+  }
+}