diff --git a/tests/test_webclient.py b/tests/test_webclient.py
index 84b1011b8..02e24de05 100644
--- a/tests/test_webclient.py
+++ b/tests/test_webclient.py
@@ -220,13 +220,13 @@ class WebClientTestCase(unittest.TestCase):
         os.mkdir(name)
         FilePath(name).child("file").setContent(b"0123456789")
         r = static.File(name)
-        r.putChild("redirect", util.Redirect("/file"))
-        r.putChild("wait", ForeverTakingResource())
-        r.putChild("error", ErrorResource())
-        r.putChild("nolength", NoLengthResource())
-        r.putChild("host", HostHeaderResource())
-        r.putChild("payload", PayloadResource())
-        r.putChild("broken", BrokenDownloadResource())
+        r.putChild(b"redirect", util.Redirect("/file"))
+        r.putChild(b"wait", ForeverTakingResource())
+        r.putChild(b"error", ErrorResource())
+        r.putChild(b"nolength", NoLengthResource())
+        r.putChild(b"host", HostHeaderResource())
+        r.putChild(b"payload", PayloadResource())
+        r.putChild(b"broken", BrokenDownloadResource())
         self.site = server.Site(r, timeout=None)
         self.wrapper = WrappingFactory(self.site)
         self.port = self._listen(self.wrapper)