diff --git a/sys/amd64/linux/linux.h b/sys/amd64/linux/linux.h
index 639499ab58d0..0859cdb92da6 100644
--- a/sys/amd64/linux/linux.h
+++ b/sys/amd64/linux/linux.h
@@ -404,6 +404,7 @@ struct l_ipc_perm {
 
 #define	LINUX_SOL_SOCKET	1
 #define	LINUX_SOL_IP		0
+#define	LINUX_SOL_IPV6		41
 #define	LINUX_SOL_IPX		256
 #define	LINUX_SOL_AX25		257
 #define	LINUX_SOL_TCP		6
diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h
index 02d12f554e8e..464a9b2958bb 100644
--- a/sys/amd64/linux32/linux.h
+++ b/sys/amd64/linux32/linux.h
@@ -494,6 +494,7 @@ struct l_ipc_perm {
  */
 #define	LINUX_SOL_SOCKET	1
 #define	LINUX_SOL_IP		0
+#define	LINUX_SOL_IPV6		41
 #define	LINUX_SOL_IPX		256
 #define	LINUX_SOL_AX25		257
 #define	LINUX_SOL_TCP		6
diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
index 741a45bb1bb5..28def4a66d16 100644
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -246,6 +246,8 @@ linux_to_bsd_sockopt_level(int level)
 	switch (level) {
 	case LINUX_SOL_SOCKET:
 		return (SOL_SOCKET);
+	case LINUX_SOL_IPV6:
+		return (IPPROTO_IPV6);
 	}
 	return (level);
 }
diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h
index 36b2084cd9f9..636bfaf2af41 100644
--- a/sys/i386/linux/linux.h
+++ b/sys/i386/linux/linux.h
@@ -473,6 +473,7 @@ struct l_ipc_perm {
  */
 #define	LINUX_SOL_SOCKET	1
 #define	LINUX_SOL_IP		0
+#define	LINUX_SOL_IPV6		41
 #define	LINUX_SOL_IPX		256
 #define	LINUX_SOL_AX25		257
 #define	LINUX_SOL_TCP		6