diff --git a/to_room.py b/to_room.py
index c23dca3..a743b11 100644
--- a/to_room.py
+++ b/to_room.py
@@ -3,6 +3,7 @@
 import sys
 import xmpp
 from contextlib import contextmanager
+import uuid
 
 
 @contextmanager
@@ -26,19 +27,19 @@ def XMPPBot(password, room="dev"):
 
         client.sendInitPresence(requestRoster=0)
 
-        presence = xmpp.Presence(to="%s@conference.yunohost.org" % room)
+        presence = xmpp.Presence(attrs={'id': uuid.uuid4()}, to="%s@conference.yunohost.org" % room)
         presence.setTag('x', namespace='http://jabber.org/protocol/muc')
 
         client.send(presence)
 
-        client.send(xmpp.Presence(to='%s@conference.yunohost.org/GitBot' % room))
+        client.send(xmpp.Presence(attrs={'id': uuid.uuid4()}, to='%s@conference.yunohost.org/Saperlipopette' % room))
 
     def sendToChatRoom(message):
         if not client.connected:
             connect()
             client.connected = True
 
-        client.send(xmpp.protocol.Message("%s@conference.yunohost.org" % room, message, typ="groupchat"))
+        client.send(xmpp.protocol.Message("%s@conference.yunohost.org" % room, message, typ="groupchat", attrs={'id': uuid.uuid4()}))
 
     client.sendToChatRoom = sendToChatRoom
 
@@ -50,7 +51,7 @@ def XMPPBot(password, room="dev"):
 
 if __name__ == '__main__':
     if len(sys.argv[1:]) < 2:
-        print "Usage : python to_room.py <password> <message> [<room name>]"
+        print("Usage : python to_room.py <password> <message> [<room name>]")
         sys.exit(1)
 
     password, message = sys.argv[1:3]