diff --git a/CHANGELOG.md b/CHANGELOG.md
index 422c70c7..47d2e343 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+<a name="2.1.2"></a>
+## [2.1.2](https://github.com/postcss/postcss-loader/compare/v2.1.1...v2.1.2) (2018-03-17)
+
+
+### Bug Fixes
+
+* **options:** disallow additional properties and add `ident` to validation ([#346](https://github.com/postcss/postcss-loader/issues/346)) ([82ef553](https://github.com/postcss/postcss-loader/commit/82ef553))
+
+
+
 <a name="2.1.1"></a>
 ## [2.1.1](https://github.com/postcss/postcss-loader/compare/v2.1.0...v2.1.1) (2018-02-26)
 
diff --git a/README.md b/README.md
index de3050ba..f331fc7a 100644
--- a/README.md
+++ b/README.md
@@ -175,7 +175,7 @@ module.exports = ({ file, options, env }) => ({
   plugins: {
     'postcss-import': { root: file.dirname },
     'postcss-cssnext': options.cssnext ? options.cssnext : false,
-    'autoprefixer': env == 'production' ? options.autoprefixer : false,
+    'autoprefixer': env === 'production' ? options.autoprefixer : false,
     'cssnano': env === 'production' ? options.cssnano : false
   }
 })
diff --git a/lib/options.json b/lib/options.json
index f1b194aa..0d63647b 100644
--- a/lib/options.json
+++ b/lib/options.json
@@ -16,6 +16,9 @@
     "exec": {
       "type": "boolean"
     },
+    "ident": {
+      "type": "string"
+    },
     "parser": {
       "type": [ "string", "object" ]
     },
@@ -36,5 +39,5 @@
       "type": [ "string", "boolean" ]
     }
   },
-  "additionalProperties": true
+  "additionalProperties": false
 }
diff --git a/package.json b/package.json
index cb639960..1d9316cb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-loader",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "description": "PostCSS loader for webpack",
   "main": "lib/index.js",
   "engines": {