diff --git a/libc/kernel/uapi/linux/ipmi.h b/libc/kernel/uapi/linux/ipmi.h
index cf9928f..dd88f2f 100644
--- a/libc/kernel/uapi/linux/ipmi.h
+++ b/libc/kernel/uapi/linux/ipmi.h
@@ -40,6 +40,14 @@
   unsigned char slave_addr;
   unsigned char lun;
 };
+#define IPMI_IPMB_DIRECT_ADDR_TYPE 0x81
+struct ipmi_ipmb_direct_addr {
+  int addr_type;
+  short channel;
+  unsigned char slave_addr;
+  unsigned char rs_lun;
+  unsigned char rq_lun;
+};
 #define IPMI_LAN_ADDR_TYPE 0x04
 struct ipmi_lan_addr {
   int addr_type;