diff --git a/.travis.yml b/.travis.yml
index 0a1c1cb..8529576 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 
-php: 
+php:
   - 5.3
   - 5.4
   - 5.5
@@ -9,4 +9,6 @@ before_script:
   - curl -s http://getcomposer.org/installer | php
   - php composer.phar install --dev
 
-script: phpunit
\ No newline at end of file
+script:
+ - vendor/bin/phpcs --standard=./phpcs.xml -p .
+ - phpunit
diff --git a/composer.json b/composer.json
index 430cc19..f6a1fcc 100644
--- a/composer.json
+++ b/composer.json
@@ -11,6 +11,9 @@
     "require": {
         "php": ">=5.3.0"
     },
+    "require-dev": {
+        "squizlabs/php_codesniffer": "1.5.3"
+    },
     "autoload": {
         "psr-4": {
             "Tobscure\\JsonApi\\": "src/"
diff --git a/phpcs.xml b/phpcs.xml
new file mode 100644
index 0000000..46aca64
--- /dev/null
+++ b/phpcs.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0"?>
+<ruleset>
+    <exclude-pattern>vendor/*</exclude-pattern>
+    <rule ref="PSR2" />
+</ruleset>