diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index 2edd1dfcc..6309d1c84 100644
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,7 @@
+2013-07-12  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* mips.h (EF_MIPS_NAN2008): New macro.
+
 2013-07-08  Tristan Gingold  <gingold@adacore.com>
 
 	* ia64.h (STB_VMS_WEAK, STB_VMS_SYSTEM): Add.
diff --git a/include/elf/mips.h b/include/elf/mips.h
index f3be987a0..84700b4bd 100644
--- a/include/elf/mips.h
+++ b/include/elf/mips.h
@@ -191,6 +191,9 @@ END_RELOC_NUMBERS (R_MIPS_maxext)
    (regs are 32-bits wide).  */
 #define EF_MIPS_32BITMODE	0x00000100
 
+/* Code in file uses the IEEE 754-2008 NaN encoding convention.  */
+#define EF_MIPS_NAN2008		0x00000400
+
 /* Architectural Extensions used by this file */
 #define EF_MIPS_ARCH_ASE	0x0f000000