diff --git a/libervia/backend/plugins/plugin_xep_0470.py b/libervia/backend/plugins/plugin_xep_0470.py
index 777355c5..352f7eeb 100644
--- a/libervia/backend/plugins/plugin_xep_0470.py
+++ b/libervia/backend/plugins/plugin_xep_0470.py
@@ -194,7 +194,7 @@ class PubsubAttachments:
                     client, service, node
                 )
                 node_config = await self._p.getConfiguration(client, service, node)
-            elif e.condition == "forbidden":
+            elif e.condition in ("forbidden", "feature-not-implemented"):
                 node_config = self._p.make_configuration_form({})
             else:
                 raise e