diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 23032d9..a17745c 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -346,6 +346,7 @@
 	NET_TCP_MODERATE_RCVBUF=106,
 	NET_TCP_TSO_WIN_DIVISOR=107,
 	NET_TCP_BIC_BETA=108,
+	NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
 };
 
 enum {