diff --git a/libc/kernel/uapi/linux/mctp.h b/libc/kernel/uapi/linux/mctp.h
new file mode 100644
index 0000000..b6bee11
--- /dev/null
+++ b/libc/kernel/uapi/linux/mctp.h
@@ -0,0 +1,41 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __UAPI_MCTP_H
+#define __UAPI_MCTP_H
+#include <linux/types.h>
+#include <linux/socket.h>
+typedef __u8 mctp_eid_t;
+struct mctp_addr {
+  mctp_eid_t s_addr;
+};
+struct sockaddr_mctp {
+  __kernel_sa_family_t smctp_family;
+  __u16 __smctp_pad0;
+  unsigned int smctp_network;
+  struct mctp_addr smctp_addr;
+  __u8 smctp_type;
+  __u8 smctp_tag;
+  __u8 __smctp_pad1;
+};
+#define MCTP_NET_ANY 0x0
+#define MCTP_ADDR_NULL 0x00
+#define MCTP_ADDR_ANY 0xff
+#define MCTP_TAG_MASK 0x07
+#define MCTP_TAG_OWNER 0x08
+#endif