diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h
index 2c269d33e6c..c18ee22061b 100644
--- a/sys/amd64/linux32/linux.h
+++ b/sys/amd64/linux32/linux.h
@@ -725,6 +725,13 @@ union l_semun {
 #define	LINUX_IP_ADD_MEMBERSHIP		35
 #define	LINUX_IP_DROP_MEMBERSHIP	36
 
+#define	LINUX_TCP_NODELAY	1
+#define	LINUX_TCP_MAXSEG	2
+#define	LINUX_TCP_KEEPIDLE	4
+#define	LINUX_TCP_KEEPINTVL	5
+#define	LINUX_TCP_KEEPCNT	6
+#define	LINUX_TCP_MD5SIG	14
+
 struct l_sockaddr {
 	l_ushort	sa_family;
 	char		sa_data[14];
diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
index 7271a18385a..cd288f8edd8 100644
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -56,6 +56,7 @@ __FBSDID("$FreeBSD$");
 #include <netinet/in.h>
 #include <netinet/in_systm.h>
 #include <netinet/ip.h>
+#include <netinet/tcp.h>
 #ifdef INET6
 #include <netinet/ip6.h>
 #include <netinet6/ip6_var.h>
@@ -325,6 +326,27 @@ linux_to_bsd_so_sockopt(int opt)
 	return (-1);
 }
 
+static int
+linux_to_bsd_tcp_sockopt(int opt)
+{
+
+	switch (opt) {
+	case LINUX_TCP_NODELAY:
+		return (TCP_NODELAY);
+	case LINUX_TCP_MAXSEG:
+		return (TCP_MAXSEG);
+	case LINUX_TCP_KEEPIDLE:
+		return (TCP_KEEPIDLE);
+	case LINUX_TCP_KEEPINTVL:
+		return (TCP_KEEPINTVL);
+	case LINUX_TCP_KEEPCNT:
+		return (TCP_KEEPCNT);
+	case LINUX_TCP_MD5SIG:
+		return (TCP_MD5SIG);
+	}
+	return (-1);
+}
+
 static int
 linux_to_bsd_msg_flags(int flags)
 {
@@ -1496,8 +1518,7 @@ linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
 		name = linux_to_bsd_ip_sockopt(args->optname);
 		break;
 	case IPPROTO_TCP:
-		/* Linux TCP option values match BSD's */
-		name = args->optname;
+		name = linux_to_bsd_tcp_sockopt(args->optname);
 		break;
 	default:
 		name = -1;
@@ -1591,8 +1612,7 @@ linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
 		name = linux_to_bsd_ip_sockopt(args->optname);
 		break;
 	case IPPROTO_TCP:
-		/* Linux TCP option values match BSD's */
-		name = args->optname;
+		name = linux_to_bsd_tcp_sockopt(args->optname);
 		break;
 	default:
 		name = -1;
diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h
index 799259c653d..8a5505ad895 100644
--- a/sys/i386/linux/linux.h
+++ b/sys/i386/linux/linux.h
@@ -701,6 +701,13 @@ union l_semun {
 #define	LINUX_IP_ADD_MEMBERSHIP		35
 #define	LINUX_IP_DROP_MEMBERSHIP	36
 
+#define	LINUX_TCP_NODELAY	1
+#define	LINUX_TCP_MAXSEG	2
+#define	LINUX_TCP_KEEPIDLE	4
+#define	LINUX_TCP_KEEPINTVL	5
+#define	LINUX_TCP_KEEPCNT	6
+#define	LINUX_TCP_MD5SIG	14
+
 struct l_sockaddr {
 	l_ushort	sa_family;
 	char		sa_data[14];