diff --git a/libc/kernel/arch-x86/asm/auxvec.h b/libc/kernel/arch-x86/asm/auxvec.h
index 6a5978e..3ff7f71 100644
--- a/libc/kernel/arch-x86/asm/auxvec.h
+++ b/libc/kernel/arch-x86/asm/auxvec.h
@@ -18,8 +18,11 @@
  ****************************************************************************/
 #ifndef _ASM_X86_AUXVEC_H
 #define _ASM_X86_AUXVEC_H
+#ifdef __i386__
 #define AT_SYSINFO 32
-#define AT_SYSINFO_EHDR 33
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
+#define AT_SYSINFO_EHDR 33
 #define AT_VECTOR_SIZE_ARCH 2
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */