diff --git a/sys/netinet/tcp_fsm.h b/sys/netinet/tcp_fsm.h
--- a/sys/netinet/tcp_fsm.h
+++ b/sys/netinet/tcp_fsm.h
@@ -59,20 +59,6 @@
 #define	TCPS_FIN_WAIT_2		9	/* have closed, fin is acked */
 #define	TCPS_TIME_WAIT		10	/* in 2*msl quiet wait after close */
 
-/* for KAME src sync over BSD*'s */
-#define	TCP6_NSTATES		TCP_NSTATES
-#define	TCP6S_CLOSED		TCPS_CLOSED
-#define	TCP6S_LISTEN		TCPS_LISTEN
-#define	TCP6S_SYN_SENT		TCPS_SYN_SENT
-#define	TCP6S_SYN_RECEIVED	TCPS_SYN_RECEIVED
-#define	TCP6S_ESTABLISHED	TCPS_ESTABLISHED
-#define	TCP6S_CLOSE_WAIT	TCPS_CLOSE_WAIT
-#define	TCP6S_FIN_WAIT_1	TCPS_FIN_WAIT_1
-#define	TCP6S_CLOSING		TCPS_CLOSING
-#define	TCP6S_LAST_ACK		TCPS_LAST_ACK
-#define	TCP6S_FIN_WAIT_2	TCPS_FIN_WAIT_2
-#define	TCP6S_TIME_WAIT		TCPS_TIME_WAIT
-
 #define	TCPS_HAVERCVDSYN(s)	((s) >= TCPS_SYN_RECEIVED)
 #define	TCPS_HAVEESTABLISHED(s)	((s) >= TCPS_ESTABLISHED)
 #define	TCPS_HAVERCVDFIN(s)	\