diff --git a/README.md b/README.md
index 2e4cb3c..0486fe9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # flat [![Build Status](https://secure.travis-ci.org/hughsk/flat.png?branch=master)](http://travis-ci.org/hughsk/flat)
 
+This is a fork of hughsk/flat that adds an option to snakify all json keys (including nested) before flattening
+
 Take a nested Javascript object and flatten it, or unflatten an object with
 delimited keys.
 
@@ -62,6 +64,10 @@ unflatten({
 
 ## Options
 
+### snakify
+
+When enabled for `flatten`, each key (nested & unstead) will be formatted using snake_case before flattening.
+
 ### delimiter
 
 Use a custom delimiter for (un)flattening your objects, instead of `.`.
diff --git a/index.js b/index.js
index ca8904a..e1ece0b 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,5 @@
 var isBuffer = require('is-buffer')
+var snake = require('to-snake-case')
 
 module.exports = flatten
 flatten.flatten = flatten
@@ -9,11 +10,13 @@ function flatten (target, opts) {
 
   var delimiter = opts.delimiter || '.'
   var maxDepth = opts.maxDepth
+  var snakify = opts.snakify || false
   var output = {}
 
   function step (object, prev, currentDepth) {
     currentDepth = currentDepth || 1
     Object.keys(object).forEach(function (key) {
+      var thisKey = snakify ? snake(key) : key
       var value = object[key]
       var isarray = opts.safe && Array.isArray(value)
       var type = Object.prototype.toString.call(value)
@@ -24,8 +27,8 @@ function flatten (target, opts) {
       )
 
       var newKey = prev
-        ? prev + delimiter + key
-        : key
+        ? prev + delimiter + thisKey
+        : thisKey
 
       if (!isarray && !isbuffer && isobject && Object.keys(value).length &&
         (!opts.maxDepth || currentDepth < maxDepth)) {
diff --git a/package.json b/package.json
index ca75202..5c80b6f 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,8 @@
     "test": "test"
   },
   "dependencies": {
-    "is-buffer": "~1.1.5"
+    "is-buffer": "~1.1.5",
+    "to-snake-case": "^1.0.0"
   },
   "repository": {
     "type": "git",
diff --git a/test/test.js b/test/test.js
index 541c9d7..4809a84 100644
--- a/test/test.js
+++ b/test/test.js
@@ -47,6 +47,16 @@ suite('Unflatten Primitives', function () {
 })
 
 suite('Flatten', function () {
+  test('Snakify keys before flattening', function () {
+    assert.deepEqual(flatten({
+      hello: {
+        worldFooBar: 'good morning'
+      }
+    }, {snakify: true}), {
+      'hello.world_foo_bar': 'good morning'
+    })
+  })
+
   test('Nested once', function () {
     assert.deepEqual(flatten({
       hello: {