diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -2174,6 +2174,12 @@
 		}
 	}
 
+	if (flags & TH_ACK)
+		TCPSTAT_INC(tcps_sndacks);
+	else if (flags & (TH_SYN|TH_FIN|TH_RST))
+		TCPSTAT_INC(tcps_sndctrl);
+	TCPSTAT_INC(tcps_sndtotal);
+
 #ifdef INET6
 	if (isipv6) {
 		TCP_PROBE5(send, NULL, tp, ip6, tp, nth);