diff --git a/ChangeLog b/ChangeLog
index b2f45b347..2232ab668 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,10 @@
 
 	* src/mod_disco.erl: Remove compatilibity code.
 
+	* src/ejabberd_c2s.erl: When the status is not specified in a presence
+	stanza, default to an empty binary, not an empty string; this is what
+	mod_last expects.
+
 2008-09-25  Jean-Sébastien Pédron  <js.pedron@meetic-corp.com>
 
 	* src/jlib.erl (timestamp_to_xml): Create an #xmlel element, not an
diff --git a/src/ejabberd_c2s.erl b/src/ejabberd_c2s.erl
index 53d364043..636c1d33f 100644
--- a/src/ejabberd_c2s.erl
+++ b/src/ejabberd_c2s.erl
@@ -1382,7 +1382,7 @@ presence_update(From, Packet, StateData) ->
     case exmpp_presence:get_type(Packet) of
 	'unavailable' ->
 	    Status = case exmpp_presence:get_status(Packet) of
-		undefined -> "";
+		undefined -> <<>>;
 		S         -> S
 	    end,
 	    Info = [{ip, StateData#state.ip}, {conn, StateData#state.conn},