diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -2320,7 +2320,8 @@
 
 			INP_WLOCK_RECHECK(inp);
 			if (optval >= 0)
-				tcp_pcap_set_sock_max(TCP_PCAP_OUT ?
+				tcp_pcap_set_sock_max(
+					(sopt->sopt_name == TCP_PCAP_OUT) ?
 					&(tp->t_outpkts) : &(tp->t_inpkts),
 					optval);
 			else
@@ -2561,7 +2562,8 @@
 #ifdef TCPPCAP
 		case TCP_PCAP_OUT:
 		case TCP_PCAP_IN:
-			optval = tcp_pcap_get_sock_max(TCP_PCAP_OUT ?
+			optval = tcp_pcap_get_sock_max(
+					(sopt->sopt_name == TCP_PCAP_OUT) ?
 					&(tp->t_outpkts) : &(tp->t_inpkts));
 			INP_WUNLOCK(inp);
 			error = sooptcopyout(sopt, &optval, sizeof optval);