diff --git a/libc/kernel/uapi/linux/tipc.h b/libc/kernel/uapi/linux/tipc.h
index 603c58f..72bcad9 100644
--- a/libc/kernel/uapi/linux/tipc.h
+++ b/libc/kernel/uapi/linux/tipc.h
@@ -119,16 +119,22 @@
   __u32 scope;
   __u32 flags;
 };
+#define TIPC_NODEID_LEN 16
 #define TIPC_MAX_MEDIA_NAME 16
 #define TIPC_MAX_IF_NAME 16
 #define TIPC_MAX_BEARER_NAME 32
 #define TIPC_MAX_LINK_NAME 68
 #define SIOCGETLINKNAME SIOCPROTOPRIVATE
+#define SIOCGETNODEID (SIOCPROTOPRIVATE + 1)
 struct tipc_sioc_ln_req {
   __u32 peer;
   __u32 bearer_id;
   char linkname[TIPC_MAX_LINK_NAME];
 };
+struct tipc_sioc_nodeid_req {
+  __u32 peer;
+  char node_id[TIPC_NODEID_LEN];
+};
 #define TIPC_CFG_SRV 0
 #define TIPC_ZONE_SCOPE 1
 #define TIPC_ADDR_NAMESEQ 1