diff --git a/tests/test-newercgi.t b/tests/test-newercgi.t
--- a/tests/test-newercgi.t
+++ b/tests/test-newercgi.t
@@ -39,7 +39,7 @@
   > from mercurial.hgweb import hgwebdir
   > from mercurial.hgweb import wsgicgi
   > 
-  > application = hgwebdir("hgweb.config")
+  > application = hgwebdir(b"hgweb.config")
   > wsgicgi.launch(application)
   > HGWEBDIR