diff --git a/README.md b/README.md
index f8db21e..11a5751 100644
--- a/README.md
+++ b/README.md
@@ -279,8 +279,9 @@ console.log(info);
 
 ### Errors
 
-The `errors` format allows you to pass in an instance of a JavaScript `Error` directly to the logger.
-It allows you to specify whether not to include the stack-trace.
+The `errors` format allows you to pass in an instance of a JavaScript `Error`
+directly to the logger. It allows you to specify whether not to include the
+stack-trace.
 
 ```js
 const { format } = require('logform');
@@ -304,6 +305,32 @@ console.log(info);
 //     at REPLServer.Interface._line (readline.js:631:8)
 ```
 
+It will also handle `{ message }` properties as `Error` instances:
+
+```js
+const { format } = require('logform');
+const { errors } = format;
+
+const errorsFormat = errors({ stack: true })
+
+const info = errorsFormat.transform({
+  message: new Error('Oh no!')
+});
+
+console.log(info);
+// Error: Oh no!
+//     at repl:1:13
+//     at ContextifyScript.Script.runInThisContext (vm.js:50:33)
+//     at REPLServer.defaultEval (repl.js:240:29)
+//     at bound (domain.js:301:14)
+//     at REPLServer.runBound [as eval] (domain.js:314:12)
+//     at REPLServer.onLine (repl.js:468:10)
+//     at emitOne (events.js:121:20)
+//     at REPLServer.emit (events.js:211:7)
+//     at REPLServer.Interface._onLine (readline.js:282:10)
+//     at REPLServer.Interface._line (readline.js:631:8)
+```
+
 ### JSON
 
 The `json` format uses `fast-safe-stringify` to finalize the message.
diff --git a/errors.js b/errors.js
index 26fcc64..b7a0975 100644
--- a/errors.js
+++ b/errors.js
@@ -2,7 +2,7 @@
 'use strict';
 
 const format = require('./format');
-const { MESSAGE } = require('triple-beam');
+const { LEVEL, MESSAGE } = require('triple-beam');
 
 /*
  * function errors (info)
@@ -11,15 +11,29 @@ const { MESSAGE } = require('triple-beam');
  *
  * Optionally, the Error's `stack` property can also be appended to the `info` object.
  */
-module.exports = format((info, opts) => {
-  if (!(info.message instanceof Error)) return info;
+module.exports = format((einfo, { stack }) => {
+  if (einfo instanceof Error) {
+    const info = Object.assign({}, einfo, {
+      level: einfo.level,
+      [LEVEL]: einfo[LEVEL] || einfo.level,
+      message: einfo.message,
+      [MESSAGE]: einfo[MESSAGE] || einfo.message
+    });
 
-  const err = info.message;
+    if (stack) info.stack = einfo.stack;
+    return info;
+  }
 
-  info.message = err.message;
-  info[MESSAGE] = err.message;
+  if (!(einfo.message instanceof Error)) return einfo;
 
-  if (opts.stack) info.stack = err.stack;
+  // Assign all enumerable properties and the
+  // message property from the error provided.
+  Object.assign(einfo, einfo.message);
+  const err = einfo.message;
+  einfo.message = err.message;
+  einfo[MESSAGE] = err.message;
 
-  return info;
+  // Assign the stack if requested.
+  if (stack) einfo.stack = err.stack;
+  return einfo;
 });
diff --git a/package-lock.json b/package-lock.json
index 2bc2904..0a3cdf1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
     },
     "acorn-jsx": {
       "version": "3.0.1",
-      "resolved": "http://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
       "requires": {
@@ -21,7 +21,7 @@
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
           "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
           "dev": true
         }
@@ -47,7 +47,7 @@
     },
     "ansi-escapes": {
       "version": "3.1.0",
-      "resolved": "http://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
       "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==",
       "dev": true
     },
@@ -379,13 +379,13 @@
     },
     "babel-plugin-syntax-async-functions": {
       "version": "6.13.0",
-      "resolved": "http://registry.npmjs.org/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz",
       "integrity": "sha1-ytnK0RkbWtY0vzCuCHI5HgZHvpU=",
       "dev": true
     },
     "babel-plugin-syntax-exponentiation-operator": {
       "version": "6.13.0",
-      "resolved": "http://registry.npmjs.org/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz",
       "integrity": "sha1-nufoM3KQ2pUoggGmpX9BcDF4MN4=",
       "dev": true
     },
@@ -966,7 +966,7 @@
     },
     "callsites": {
       "version": "0.2.0",
-      "resolved": "http://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
       "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
       "dev": true
     },
@@ -977,14 +977,14 @@
       "dev": true
     },
     "caniuse-lite": {
-      "version": "1.0.30000923",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000923.tgz",
-      "integrity": "sha512-j5ur7eeluOFjjPUkydtXP4KFAsmH3XaQNch5tvWSO+dLHYt5PE+VgJZLWtbVOodfWij6m6zas28T4gB/cLYq1w==",
+      "version": "1.0.30000927",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000927.tgz",
+      "integrity": "sha512-ogq4NbUWf1uG/j66k0AmiO3GjqJAlQyF8n4w8a954cbCyFKmYGvRtgz6qkq2fWuduTXHibX7GyYL5Pg58Aks2g==",
       "dev": true
     },
     "chalk": {
       "version": "1.1.3",
-      "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
@@ -1164,7 +1164,7 @@
     },
     "concat-stream": {
       "version": "1.6.2",
-      "resolved": "http://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
       "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
       "dev": true,
       "requires": {
@@ -1334,9 +1334,9 @@
       }
     },
     "electron-to-chromium": {
-      "version": "1.3.96",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.96.tgz",
-      "integrity": "sha512-ZUXBUyGLeoJxp4Nt6G/GjBRLnyz8IKQGexZ2ndWaoegThgMGFO1tdDYID5gBV32/1S83osjJHyfzvanE/8HY4Q==",
+      "version": "1.3.97",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.97.tgz",
+      "integrity": "sha512-cElMxsoUl8BoY+DnTNXebdVuDz/l0HS5ijpq1uUcHNMrzFiQRKmADn39luHVIaeISO8qtFbNmqhSBU/BQCHwig==",
       "dev": true
     },
     "error-ex": {
@@ -1356,7 +1356,7 @@
     },
     "eslint": {
       "version": "4.19.1",
-      "resolved": "http://registry.npmjs.org/eslint/-/eslint-4.19.1.tgz",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.19.1.tgz",
       "integrity": "sha512-bT3/1x1EbZB7phzYu7vCr1v3ONuzDtX8WjuM9c0iYxe+cq+pwcKEoQjl7zd3RpC6YOLgnSy3cTN58M2jcoPDIQ==",
       "dev": true,
       "requires": {
@@ -1529,7 +1529,7 @@
     },
     "espree": {
       "version": "3.5.4",
-      "resolved": "http://registry.npmjs.org/espree/-/espree-3.5.4.tgz",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.4.tgz",
       "integrity": "sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==",
       "dev": true,
       "requires": {
@@ -1600,7 +1600,7 @@
     },
     "expand-range": {
       "version": "1.8.2",
-      "resolved": "http://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz",
+      "resolved": "https://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz",
       "integrity": "sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=",
       "dev": true,
       "optional": true,
@@ -1631,7 +1631,7 @@
     },
     "external-editor": {
       "version": "2.2.0",
-      "resolved": "http://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz",
       "integrity": "sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==",
       "dev": true,
       "requires": {
@@ -1652,7 +1652,7 @@
     },
     "fast-deep-equal": {
       "version": "1.1.0",
-      "resolved": "http://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
       "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
       "dev": true
     },
@@ -1675,7 +1675,7 @@
     },
     "fecha": {
       "version": "2.3.3",
-      "resolved": "http://registry.npmjs.org/fecha/-/fecha-2.3.3.tgz",
+      "resolved": "https://registry.npmjs.org/fecha/-/fecha-2.3.3.tgz",
       "integrity": "sha512-lUGBnIamTAwk4znq5BcqsDaxSmZ9nDVJaij6NvRt/Tg4R69gERA+otPKbS86ROw9nxVMw2/mp1fnaiWqbs6Sdg=="
     },
     "figures": {
@@ -2325,7 +2325,7 @@
     },
     "get-stream": {
       "version": "3.0.0",
-      "resolved": "http://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
       "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=",
       "dev": true
     },
@@ -2612,7 +2612,7 @@
     },
     "is-accessor-descriptor": {
       "version": "0.1.6",
-      "resolved": "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+      "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
       "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
       "dev": true,
       "requires": {
@@ -2643,7 +2643,7 @@
     },
     "is-builtin-module": {
       "version": "1.0.0",
-      "resolved": "http://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz",
       "integrity": "sha1-VAVy0096wxGfj3bDDLwbHgN6/74=",
       "dev": true,
       "requires": {
@@ -2652,7 +2652,7 @@
     },
     "is-data-descriptor": {
       "version": "0.1.4",
-      "resolved": "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+      "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
       "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
       "dev": true,
       "requires": {
@@ -2843,7 +2843,7 @@
     },
     "jsesc": {
       "version": "1.3.0",
-      "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-1.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-1.3.0.tgz",
       "integrity": "sha1-RsP+yMGJKxKwgz25vHYiF226s0s=",
       "dev": true
     },
@@ -2861,7 +2861,7 @@
     },
     "json5": {
       "version": "0.5.1",
-      "resolved": "http://registry.npmjs.org/json5/-/json5-0.5.1.tgz",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-0.5.1.tgz",
       "integrity": "sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=",
       "dev": true
     },
@@ -2915,7 +2915,7 @@
     },
     "load-json-file": {
       "version": "2.0.0",
-      "resolved": "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
       "integrity": "sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=",
       "dev": true,
       "requires": {
@@ -3030,7 +3030,7 @@
     },
     "minimist": {
       "version": "0.0.8",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
       "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
       "dev": true
     },
@@ -3057,7 +3057,7 @@
     },
     "mkdirp": {
       "version": "0.5.1",
-      "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
       "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
       "dev": true,
       "requires": {
@@ -3085,7 +3085,7 @@
       "dependencies": {
         "commander": {
           "version": "2.15.1",
-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
           "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
           "dev": true
         },
@@ -6334,7 +6334,7 @@
             },
             "is-accessor-descriptor": {
               "version": "0.1.6",
-              "resolved": "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+              "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
               "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
               "dev": true,
               "optional": true,
@@ -6356,7 +6356,7 @@
             },
             "is-data-descriptor": {
               "version": "0.1.4",
-              "resolved": "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+              "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
               "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
               "dev": true,
               "optional": true,
@@ -6635,7 +6635,7 @@
       "dependencies": {
         "jsesc": {
           "version": "0.5.0",
-          "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
           "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
           "dev": true
         }
@@ -6719,12 +6719,12 @@
       "dev": true
     },
     "rimraf": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
-      "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
+      "integrity": "sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==",
       "dev": true,
       "requires": {
-        "glob": "^7.0.5"
+        "glob": "^7.1.3"
       }
     },
     "run-async": {
diff --git a/test/errors.test.js b/test/errors.test.js
index 0f84707..3b8944e 100644
--- a/test/errors.test.js
+++ b/test/errors.test.js
@@ -7,7 +7,30 @@ const { MESSAGE } = require('triple-beam');
 
 const err = new Error('whatever');
 
-describe('errors', () => {
+const errProps = new Error('another error');
+errProps.whatever = true;
+errProps.wut = 'some string';
+
+const errInfo = new Error('Already has level');
+errInfo.level = 'error';
+
+const errInfoProps = new Error('Level with props');
+errInfoProps.level = 'error';
+errInfoProps.whatever = true;
+errInfoProps.wut = 'some string';
+
+describe('errors()({ object })', () => {
+  it('errors() returns the original info', assumeFormatted(
+    errors(),
+    { level: 'info', message: 'whatever' },
+    (info) => {
+      assume(info.level).is.a('string');
+      assume(info.message).is.a('string');
+      assume(info.level).equals('info');
+      assume(info.message).equals('whatever');
+    }
+  ));
+
   it('errors() (default) sets info[MESSAGE]', assumeFormatted(
     errors(),
     { level: 'info', message: err },
@@ -20,7 +43,7 @@ describe('errors', () => {
     }
   ));
 
-  it('errors({ space: 2 }) sets info.stack', assumeFormatted(
+  it('errors({ stack: true }) sets info.stack', assumeFormatted(
     errors({ stack: true }),
     { level: 'info', message: err },
     (info) => {
@@ -28,8 +51,51 @@ describe('errors', () => {
       assume(info.message).is.a('string');
       assume(info.level).equals('info');
       assume(info.message).equals(err.message);
-      assume(info.stack).equals(err.stack);
       assume(info[MESSAGE]).equals(err.message);
+      assume(info.stack).equals(err.stack);
     }
   ));
+
+  it('errors() sets custom error properties', assumeFormatted(
+    errors(),
+    { level: 'info', message: errProps },
+    (info) => {
+      assume(info.level).is.a('string');
+      assume(info.message).is.a('string');
+      assume(info.level).equals('info');
+      assume(info.message).equals(errProps.message);
+      assume(info[MESSAGE]).equals(errProps.message);
+      assume(info.whatever).true();
+      assume(info.wut).equals('some string');
+    }
+  ));
+});
+
+describe('errors()(Error)', () => {
+  it('errors() (default) sets info[MESSAGE]', assumeFormatted(
+    errors(),
+    errInfo,
+    (info) => {
+      assume(info.level).is.a('string');
+      assume(info.message).is.a('string');
+      assume(info.level).equals(errInfo.level);
+      assume(info.message).equals(errInfo.message);
+      assume(info[MESSAGE]).equals(errInfo.message);
+    },
+    { immutable: false }
+  ));
+
+  it('errors({ space: 2 }) sets info.stack', assumeFormatted(
+    errors({ stack: true }),
+    errInfo,
+    (info) => {
+      assume(info.level).is.a('string');
+      assume(info.message).is.a('string');
+      assume(info.level).equals(errInfo.level);
+      assume(info.message).equals(errInfo.message);
+      assume(info[MESSAGE]).equals(errInfo.message);
+      assume(info.stack).equals(errInfo.stack);
+    },
+    { immutable: false }
+  ));
 });
diff --git a/test/helpers.js b/test/helpers.js
index 4a60fad..360aa48 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -39,14 +39,18 @@ exports.infoify = info => {
  * of the `colorize` format and asserts that the
  * correct `info` object was processed.
  */
-exports.assumeFormatted = (fmt, info, assertion) => {
+exports.assumeFormatted = (fmt, info, assertion, opts = {}) => {
   return done => {
     const writable = exports.writable(actual => {
       assertion(actual, info);
       done();
     });
 
-    writable.write(fmt.transform(Object.assign({}, info), fmt.options));
+    const value = opts.immutable === false
+      ? info
+      : Object.assign({}, info);
+
+    writable.write(fmt.transform(value, fmt.options));
   };
 };