diff --git a/libc/kernel/uapi/linux/kexec.h b/libc/kernel/uapi/linux/kexec.h
index 5100404..b2dc88f 100644
--- a/libc/kernel/uapi/linux/kexec.h
+++ b/libc/kernel/uapi/linux/kexec.h
@@ -28,6 +28,7 @@
 #define KEXEC_ARCH_DEFAULT (0 << 16)
 #define KEXEC_ARCH_386 (3 << 16)
 #define KEXEC_ARCH_68K (4 << 16)
+#define KEXEC_ARCH_PARISC (15 << 16)
 #define KEXEC_ARCH_X86_64 (62 << 16)
 #define KEXEC_ARCH_PPC (20 << 16)
 #define KEXEC_ARCH_PPC64 (21 << 16)