--- ./include/proftpd.h.org	Mon Oct 22 01:32:03 2001
+++ ./include/proftpd.h	Mon Oct 22 01:33:00 2001
@@ -99,7 +99,7 @@
 
   long flags;				/* Session & State flags */
   struct sockaddr_storage data_addr;	/* Remote data address */
-  short data_port;			/* Remote data port */
+  unsigned short data_port;		/* Remote data port */
 
   char *ident_user;			/* User identified by ident protocol */