diff --git a/tests/Composer/Test/Json/JsonFileTest.php b/tests/Composer/Test/Json/JsonFileTest.php
index 5d896f026..46b434ccd 100644
--- a/tests/Composer/Test/Json/JsonFileTest.php
+++ b/tests/Composer/Test/Json/JsonFileTest.php
@@ -87,7 +87,7 @@ class JsonFileTest extends \PHPUnit_Framework_TestCase
 
     public function testSchemaValidation()
     {
-        $json = new JsonFile(__DIR__.'/fixtures/composer.json');
+        $json = new JsonFile(__DIR__.'/Fixtures/composer.json');
         $this->assertTrue($json->validateSchema());
     }