diff --git a/tests/ResourceServerTest.php b/tests/ResourceServerTest.php
index 794cebb1..791e8a41 100644
--- a/tests/ResourceServerTest.php
+++ b/tests/ResourceServerTest.php
@@ -111,7 +111,8 @@ class ResourceServerTest extends \PHPUnit_Framework_TestCase
             $scopeStorage
         );
 
-        $this->assertFalse($server->isValidRequest());
+        $this->setExpectedException('League\OAuth2\Server\Exception\InvalidRequestException');
+        $server->isValidRequest();
     }
 
     public function testIsValid()