diff --git a/.gitignore b/.gitignore
index 16188c4..42b7338 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .idea
 composer.lock
 coverage
+.php_cs.cache
diff --git a/.php_cs b/.php_cs
new file mode 100644
index 0000000..2f41a5d
--- /dev/null
+++ b/.php_cs
@@ -0,0 +1,16 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->exclude([
+        'vendor',
+    ])
+    ->in(__DIR__)
+    ->files()->name('*.php')
+;
+
+return PhpCsFixer\Config::create()
+    ->setRules([
+        '@PSR2' => true,
+    ])
+    ->setFinder($finder)
+;
diff --git a/composer.json b/composer.json
index 3dda8f9..032569a 100644
--- a/composer.json
+++ b/composer.json
@@ -46,6 +46,7 @@
         "post-install-cmd": [
             "test -d .git && cp contrib/pre-commit .git/hooks/pre-commit",
             "test -d .git && chmod +x .git/hooks/pre-commit"
-        ]
+        ],
+        "cs": "php-cs-fixer fix --config=.php_cs"
     }
 }