diff --git a/libc/kernel/uapi/linux/kexec.h b/libc/kernel/uapi/linux/kexec.h
index 53c86f3..c5c8623 100644
--- a/libc/kernel/uapi/linux/kexec.h
+++ b/libc/kernel/uapi/linux/kexec.h
@@ -14,6 +14,7 @@
 #define KEXEC_FILE_UNLOAD 0x00000001
 #define KEXEC_FILE_ON_CRASH 0x00000002
 #define KEXEC_FILE_NO_INITRAMFS 0x00000004
+#define KEXEC_FILE_DEBUG 0x00000008
 #define KEXEC_ARCH_DEFAULT (0 << 16)
 #define KEXEC_ARCH_386 (3 << 16)
 #define KEXEC_ARCH_68K (4 << 16)