diff --git a/railties/test/application/load_test.rb b/railties/test/application/load_test.rb
index 689bc77ecfeabcc81ab2ae09beaa183016f90dfa..1c5811b07a0027eb266a24ede558feb97f74fbb8 100644
--- a/railties/test/application/load_test.rb
+++ b/railties/test/application/load_test.rb
@@ -20,8 +20,10 @@ def setup
     end
 
     test "config.ru can be racked up" do
-      @app = rackup
-      assert_welcome get("/")
+      Dir.chdir app_path do
+        @app = rackup
+        assert_welcome get("/")
+      end
     end
 
     test "Rails.application is available after config.ru has been racked up" do