diff --git a/src/memory/memory.py b/src/memory/memory.py
index 18af8f7e..ec3706cb 100644
--- a/src/memory/memory.py
+++ b/src/memory/memory.py
@@ -423,7 +423,12 @@ class Memory(object):
         entity_data = self._getEntitiesData(entity_jid, profile)[entity_jid]
         resource = entity_jid.resource
         if resource:
-            self.updateEntityData(entity_jid.userhostJID(), C.ENTITY_LAST_RESOURCE, resource, profile)
+            try:
+                type_ = self.getEntityDatum(entity_jid.userhostJID(), 'type', profile)
+            except KeyError:
+                type_ = 'contact'
+            if type_ != 'chatroom':
+                self.updateEntityData(entity_jid.userhostJID(), C.ENTITY_LAST_RESOURCE, resource, profile)
         entity_data.setdefault("presence", {})[resource or ''] = (show, priority, statuses)
 
     def _getEntitiesData(self, entity_jid, profile):