diff -r f7f4478c8d19 -r c66778885cec libpurple/protocols/yahoo/libymsg.c
--- a/libpurple/protocols/yahoo/libymsg.c	Sat Apr 10 19:43:04 2010 +0000
+++ b/libpurple/protocols/yahoo/libymsg.c	Sat Apr 10 19:45:47 2010 +0000
@@ -3742,6 +3742,7 @@
 
 	g_free(yd->cookie_y);
 	g_free(yd->cookie_t);
+	g_free(yd->cookie_b);
 
 	if (yd->txhandler)
 		purple_input_remove(yd->txhandler);