diff --git a/include/linux/ip.h b/include/linux/ip.h
index 33e8a19..5a560da 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -110,6 +110,10 @@
 
 struct inet_request_sock {
 	struct request_sock	req;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	u16			inet6_rsk_offset;
+	/* 2 bytes hole, try to pack */
+#endif
 	u32			loc_addr;
 	u32			rmt_addr;
 	u16			rmt_port;