--- a/runtime/WampClient.py	Mon Aug 13 11:10:23 2018 +0200
+++ b/runtime/WampClient.py	Mon Aug 13 13:24:28 2018 +0200
@@ -427,7 +427,8 @@
 
 
 def RegisterWebSettings(NS):
-    NS.ConfigurableSettings.addExtension(
+
+    NS.ConfigurableSettings.addSettings(
         "wamp",
         _("Wamp Settings"),
         webFormInterface,