diff -r bd4cdc02d48a -r 48a404e083c4 plugins/roster.lua
--- a/plugins/roster.lua	Wed Apr 20 01:32:25 2011 +0200
+++ b/plugins/roster.lua	Tue May 24 20:22:02 2011 +0200
@@ -123,7 +123,9 @@
 					add_item(item)
 					target = roster.items[jid];
 				end
-				stream:event("roster/item-"..event, target);
+				if target then
+					stream:event("roster/item-"..event, target);
+				end
 			-- TODO else return error? Events?
 			end
 			stream:send(verse.reply(stanza))