diff --git a/output/elf.h b/output/elf.h
index b20d63f8..3c976e50 100644
--- a/output/elf.h
+++ b/output/elf.h
@@ -202,7 +202,8 @@
 #define EI_DATA         5
 #define EI_VERSION      6
 #define EI_OSABI        7
-#define EI_PAD          8
+#define EI_ABIVERSION   8
+#define EI_NINDENT      16
 
 #define ELFMAG0         0x7f    /* EI_MAG */
 #define ELFMAG1         'E'