diff --git a/.php_cs b/.php_cs
new file mode 100644
index 0000000..8d3b7d8
--- /dev/null
+++ b/.php_cs
@@ -0,0 +1,11 @@
+<?php
+
+return Symfony\CS\Config\Config::create()->finder(Symfony\CS\Finder\DefaultFinder::create()
+    ->notName('LICENSE')
+    ->notName('README.md')
+    ->notName('composer.*')
+    ->notName('phpunit.xml.*')
+    ->notName('*.phar')
+    ->exclude('vendor')
+    ->in(__DIR__)
+);