diff --git a/src/tmp/wokkel/rsm.py b/src/tmp/wokkel/rsm.py
index 9e5e626d..6cc83451 100644
--- a/src/tmp/wokkel/rsm.py
+++ b/src/tmp/wokkel/rsm.py
@@ -30,7 +30,6 @@ import pubsub
 import copy
 
 
-# RSM namespace
 NS_RSM = 'http://jabber.org/protocol/rsm'
 
 
@@ -99,7 +98,7 @@ class RSMRequest():
             raise RSMNotFoundError()
 
         request = RSMRequest()
-        for elt in list(set_elt.elements()):
+        for elt in set_elt.elements():
             if elt.name in ('before', 'after'):
                 setattr(request, elt.name, ''.join(elt.children))
             elif elt.name in ('max', 'index'):