diff --git a/Tests/routeTest.php b/Tests/routeTest.php
index 7fed846..e434ab7 100644
--- a/Tests/routeTest.php
+++ b/Tests/routeTest.php
@@ -325,6 +325,7 @@ class test_route extends PHPUnit_Framework_TestCase
   public function test_errorRateLimit1 ()
   {
     $route = new route ();
+    $route->ratelimiter->storageDir = "/tmp/ratelimit-".time();
     $route->error (new \Exception ("test1", 500));
     $route->error (new \Exception ("test2", 500));
     $route->error (new \Exception ("test3", 500));