diff --git a/index.js b/index.js
index 87cad21..f546494 100644
--- a/index.js
+++ b/index.js
@@ -35,8 +35,7 @@ function Linter (opts) {
     useEslintrc: false,
     globals: [],
     plugins: [],
-    envs: [],
-    rules: {}
+    envs: []
   })
   if (!self.eslintConfig) {
     throw new Error('No eslintConfig passed.')
@@ -51,7 +50,6 @@ function Linter (opts) {
  * @param {Array.<string>=} opts.globals  custom global variables to declare
  * @param {Array.<string>=} opts.plugins  custom eslint plugins
  * @param {Array.<string>=} opts.envs     custom eslint environment
- * @param {Object=} opts.rules            custom eslint rules
  * @param {string=} opts.parser           custom js parser (e.g. babel-eslint)
  * @param {function(Error, Object)} cb    callback
  */
@@ -79,7 +77,6 @@ Linter.prototype.lintText = function (text, opts, cb) {
  * @param {Array.<string>=} opts.globals  custom global variables to declare
  * @param {Array.<string>=} opts.plugins  custom eslint plugins
  * @param {Array.<string>=} opts.envs     custom eslint environment
- * @param {Object=} opts.rules            custom eslint rules
  * @param {string=} opts.parser           custom js parser (e.g. babel-eslint)
  * @param {function(Error, Object)} cb    callback
  */
@@ -129,7 +126,6 @@ Linter.prototype.parseOpts = function (opts) {
   setGlobals(opts.globals || opts.global)
   setPlugins(opts.plugins || opts.plugin)
   setEnvs(opts.envs || opts.env)
-  setRules(opts.rules || opts.rule)
   setParser(opts.parser)
 
   var root
@@ -140,7 +136,6 @@ Linter.prototype.parseOpts = function (opts) {
     if (packageOpts) {
       setGlobals(packageOpts.globals || packageOpts.global)
       setPlugins(packageOpts.plugins || packageOpts.plugin)
-      setRules(packageOpts.rules || packageOpts.rule)
       setEnvs(packageOpts.envs || packageOpts.env)
       if (!opts.parser) setParser(packageOpts.parser)
     }
@@ -156,11 +151,6 @@ Linter.prototype.parseOpts = function (opts) {
     opts.eslintConfig.plugins = self.eslintConfig.plugins.concat(plugins)
   }
 
-  function setRules (rules) {
-    if (!rules) return
-    opts.eslintConfig.rules = extend(opts.eslintConfig.rules, rules)
-  }
-
   function setEnvs (envs) {
     if (!envs) return
     if (!Array.isArray(envs) && typeof envs !== 'string') {