diff --git a/tests/Uri/UriRetrieverTest.php b/tests/Uri/UriRetrieverTest.php
index c27e49c3..c95fc923 100644
--- a/tests/Uri/UriRetrieverTest.php
+++ b/tests/Uri/UriRetrieverTest.php
@@ -26,7 +26,7 @@ protected function setUp()
         $this->validator = new Validator();
     }
 
-    private function getRetrieverMock($returnSchema, $returnMediaType = Validator::SCHEMA_MEDIA_TYPE)
+    private function getRetrieverMock($returnSchema)
     {
         $jsonSchema = json_decode($returnSchema);