--- mtr.c.orig	Sun Feb  9 17:37:45 2003
+++ mtr.c	Sun Feb  9 17:38:18 2003
@@ -25,6 +25,7 @@
 #include <string.h>
 #include <netinet/in.h>
 #include <sys/socket.h> 
+#include <arpa/inet.h>
 #include <unistd.h>
 
 #include "mtr-curses.h"