diff --git a/src/tmp/wokkel/rsm.py b/src/tmp/wokkel/rsm.py
index df981e73..146f7ac7 100644
--- a/src/tmp/wokkel/rsm.py
+++ b/src/tmp/wokkel/rsm.py
@@ -372,7 +372,7 @@ class PubSubService(pubsub.PubSubService):
             if isinstance(item, tuple):
                 # XXX: see sat_pubsub.pgsql_storage.LeafNode.getItemsById return value
                 item = item[0]
-            if item.name == set:
+            if item.name == "set":
                 response.addChild(item)
                 break