diff --git a/src/plugins/plugin_xep_0060.py b/src/plugins/plugin_xep_0060.py
index 189c3622..931d307e 100755
--- a/src/plugins/plugin_xep_0060.py
+++ b/src/plugins/plugin_xep_0060.py
@@ -255,7 +255,7 @@ class XEP_0060(object):
             metadata = {}
             if rsm_request is not None:
                 rsm_data = client.pubsub_client.getRSMResponse(ext_data['id'])
-                metadata.update({'rsm_{}'.format(key): value for key, value in rsm_data})
+                metadata.update({'rsm_{}'.format(key): value for key, value in rsm_data.iteritems()})
             return (items, metadata)
 
         d.addCallback(addMetadata)