diff --git a/src/allmydata/webish.py b/src/allmydata/webish.py
index aa3d06259..43daecea2 100644
--- a/src/allmydata/webish.py
+++ b/src/allmydata/webish.py
@@ -1372,7 +1372,7 @@ class LocalAccess:
 class WebishServer(service.MultiService):
     name = "webish"
 
-    def __init__(self, webport, nodeurl_path):
+    def __init__(self, webport, nodeurl_path=None):
         service.MultiService.__init__(self)
         self.webport = webport
         self.root = Root()