diff --git a/sys/netinet/tcp_fsm.h b/sys/netinet/tcp_fsm.h
index df14ae57a844..dcc4a4e8aa63 100644
--- a/sys/netinet/tcp_fsm.h
+++ b/sys/netinet/tcp_fsm.h
@@ -78,8 +78,27 @@
 #define	TCPS_HAVERCVDFIN(s)	\
     ((s) == TCPS_CLOSE_WAIT || ((s) >= TCPS_CLOSING && (s) != TCPS_FIN_WAIT_2))
 
-
-extern u_char	tcp_outflags[TCP_NSTATES];
+#ifdef	TCPOUTFLAGS
+/*
+ * Flags used when sending segments in tcp_output.  Basic flags (TH_RST,
+ * TH_ACK,TH_SYN,TH_FIN) are totally determined by state, with the proviso
+ * that TH_FIN is sent only if all data queued for output is included in the
+ * segment.
+ */
+static u_char	tcp_outflags[TCP_NSTATES] = {
+	TH_RST|TH_ACK,		/* 0, CLOSED */
+	0,			/* 1, LISTEN */
+	TH_SYN,			/* 2, SYN_SENT */
+	TH_SYN|TH_ACK,		/* 3, SYN_RECEIVED */
+	TH_ACK,			/* 4, ESTABLISHED */
+	TH_ACK,			/* 5, CLOSE_WAIT */
+	TH_FIN|TH_ACK,		/* 6, FIN_WAIT_1 */
+	TH_FIN|TH_ACK,		/* 7, CLOSING */
+	TH_FIN|TH_ACK,		/* 8, LAST_ACK */
+	TH_ACK,			/* 9, FIN_WAIT_2 */
+	TH_ACK,			/* 10, TIME_WAIT */
+};	
+#endif
 
 #ifdef KPROF
 int	tcp_acounts[TCP_NSTATES][PRU_NREQ];
diff --git a/sys/netinet/tcp_offload.c b/sys/netinet/tcp_offload.c
index 5aa69d69fd66..f7814769bdfb 100644
--- a/sys/netinet/tcp_offload.c
+++ b/sys/netinet/tcp_offload.c
@@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
 #include <netinet/in_pcb.h>
 #include <netinet/tcp.h>
 #include <netinet/tcp_offload.h>
+#define	TCPOUTFLAGS
 #include <netinet/tcp_fsm.h>
 #include <netinet/tcp_var.h>
 #include <netinet/toecore.h>
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c
index 719781272c1f..78e0db8044c0 100644
--- a/sys/netinet/tcp_output.c
+++ b/sys/netinet/tcp_output.c
@@ -72,6 +72,7 @@ __FBSDID("$FreeBSD$");
 #include <netinet6/ip6_var.h>
 #endif
 #include <netinet/tcp.h>
+#define	TCPOUTFLAGS
 #include <netinet/tcp_fsm.h>
 #include <netinet/tcp_log_buf.h>
 #include <netinet/tcp_seq.h>
@@ -167,26 +168,6 @@ hhook_run_tcp_est_out(struct tcpcb *tp, struct tcphdr *th,
 }
 #endif
 
-/*
- * Flags used when sending segments in tcp_output.  Basic flags (TH_RST,
- * TH_ACK,TH_SYN,TH_FIN) are totally determined by state, with the proviso
- * that TH_FIN is sent only if all data queued for output is included in the
- * segment.
- */
-u_char	tcp_outflags[TCP_NSTATES] = {
-	TH_RST|TH_ACK,		/* 0, CLOSED */
-	0,			/* 1, LISTEN */
-	TH_SYN,			/* 2, SYN_SENT */
-	TH_SYN|TH_ACK,		/* 3, SYN_RECEIVED */
-	TH_ACK,			/* 4, ESTABLISHED */
-	TH_ACK,			/* 5, CLOSE_WAIT */
-	TH_FIN|TH_ACK,		/* 6, FIN_WAIT_1 */
-	TH_FIN|TH_ACK,		/* 7, CLOSING */
-	TH_FIN|TH_ACK,		/* 8, LAST_ACK */
-	TH_ACK,			/* 9, FIN_WAIT_2 */
-	TH_ACK,			/* 10, TIME_WAIT */
-};
-
 /*
  * CC wrapper hook functions
  */
diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
index e123bc96d636..e905f4ae1465 100644
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -76,6 +76,7 @@ __FBSDID("$FreeBSD$");
 #include <netinet6/in6_pcb.h>
 #include <netinet6/ip6_var.h>
 #include <netinet/tcp.h>
+#define	TCPOUTFLAGS
 #include <netinet/tcp_fsm.h>
 #include <netinet/tcp_log_buf.h>
 #include <netinet/tcp_seq.h>