diff --git a/sbin/ipf/ipsend/iptests.c b/sbin/ipf/ipsend/iptests.c
--- a/sbin/ipf/ipsend/iptests.c
+++ b/sbin/ipf/ipsend/iptests.c
@@ -74,7 +74,6 @@
 #  include <netinet/in_pcb.h>
 # endif
 #include "ipsend.h"
-# include <netinet/tcp_timer.h>
 # include <netinet/tcp_var.h>
 #if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 106000000)
 # define USE_NANOSLEEP
diff --git a/sbin/ipf/ipsend/sock.c b/sbin/ipf/ipsend/sock.c
--- a/sbin/ipf/ipsend/sock.c
+++ b/sbin/ipf/ipsend/sock.c
@@ -58,7 +58,6 @@
 #include <netinet/ip_var.h>
 #define	_WANT_INPCB
 #include <netinet/in_pcb.h>
-#include <netinet/tcp_timer.h>
 #define	_WANT_TCPCB
 #include <netinet/tcp_var.h>
 #include <stdio.h>
diff --git a/usr.bin/netstat/inet.c b/usr.bin/netstat/inet.c
--- a/usr.bin/netstat/inet.c
+++ b/usr.bin/netstat/inet.c
@@ -58,7 +58,6 @@
 #include <netinet/tcp_seq.h>
 #define	TCPSTATES
 #include <netinet/tcp_fsm.h>
-#include <netinet/tcp_timer.h>
 #include <netinet/tcp_var.h>
 #include <netinet/udp.h>
 #include <netinet/udp_var.h>
diff --git a/usr.bin/systat/netstat.c b/usr.bin/systat/netstat.c
--- a/usr.bin/systat/netstat.c
+++ b/usr.bin/systat/netstat.c
@@ -60,7 +60,6 @@
 #include <netinet/tcp_seq.h>
 #define TCPSTATES
 #include <netinet/tcp_fsm.h>
-#include <netinet/tcp_timer.h>
 #define	_WANT_TCPCB
 #include <netinet/tcp_var.h>
 #include <netinet/udp.h>
diff --git a/usr.bin/systat/tcp.c b/usr.bin/systat/tcp.c
--- a/usr.bin/systat/tcp.c
+++ b/usr.bin/systat/tcp.c
@@ -41,7 +41,6 @@
 #include <netinet/tcp.h>
 #include <netinet/tcp_seq.h>
 #include <netinet/tcp_fsm.h>
-#include <netinet/tcp_timer.h>
 #include <netinet/tcp_var.h>
 
 #include <inttypes.h>