diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index f74dd13..c9fdde2 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -165,6 +165,7 @@
 	struct ucred		creds;		/* Skb credentials	*/
 	__u32			pid;
 	__u32			dst_group;
+	struct sock		*ssk;
 };
 
 #define NETLINK_CB(skb)		(*(struct netlink_skb_parms*)&((skb)->cb))