diff -r b4bbfacd7f20 -r 83f52ce0929f libpurple/protocols/irc/irc.c
--- a/libpurple/protocols/irc/irc.c	Thu Mar 05 23:54:50 2009 +0000
+++ b/libpurple/protocols/irc/irc.c	Sat Mar 07 01:23:51 2009 +0000
@@ -565,7 +565,7 @@
 	struct irc_conn *irc = (struct irc_conn *)gc->proto_data;
 	struct irc_buddy *ib = g_new0(struct irc_buddy, 1);
 	ib->name = g_strdup(purple_buddy_get_name(buddy));
-	g_hash_table_insert(irc->buddies, ib->name, ib);
+	g_hash_table_replace(irc->buddies, ib->name, ib);
 
 	/* if the timer isn't set, this is during signon, so we don't want to flood
 	 * ourself off with ISON's, so we don't, but after that we want to know when