diff --git a/composer.json b/composer.json
index dd3615ff9..00be71d43 100644
--- a/composer.json
+++ b/composer.json
@@ -18,5 +18,9 @@
     ],
     "require": {
         "php": ">=5.3.2"
-    }
+    },
+    "autoload": {
+        "psr-0": { "Symfony\\Component\\Serializer": "" }
+    },
+    "target-dir": "Symfony/Component/Serializer"
 }