diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 01935536ab..aaba40691e 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2014-03-26  Tristan Gingold  <gingold@adacore.com>
+
+	* mach-o.c (bfd_mach_o_convert_architecture): Add
+	BFD_MACH_O_CPU_TYPE_ARM64.
+
 2014-03-26  Alan Modra  <amodra@gmail.com>
 
 	* elf64-ppc.c (ppc64_elf_check_relocs): Account for possibly
diff --git a/bfd/mach-o.c b/bfd/mach-o.c
index c77520a665..6237602021 100644
--- a/bfd/mach-o.c
+++ b/bfd/mach-o.c
@@ -905,6 +905,10 @@ bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
       *type = bfd_arch_powerpc;
       *subtype = bfd_mach_ppc64;
       break;
+    case BFD_MACH_O_CPU_TYPE_ARM64:
+      *type = bfd_arch_aarch64;
+      *subtype = bfd_mach_aarch64;
+      break;
     default:
       *type = bfd_arch_unknown;
       break;
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 98ecae0da7..0d9648c1bb 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,7 @@
+2014-03-26  Tristan Gingold  <gingold@adacore.com>
+
+	* od-macho.c (bfd_mach_o_cpu_name): Add BFD_MACH_O_CPU_TYPE_ARM64.
+
 2014-03-24  Tristan Gingold  <gingold@adacore.com>
 
 	* od-macho.c (dump_unwind_encoding_x86): Set the factor.
diff --git a/binutils/od-macho.c b/binutils/od-macho.c
index 3cd2cf0f14..6f881129b6 100644
--- a/binutils/od-macho.c
+++ b/binutils/od-macho.c
@@ -99,6 +99,7 @@ static const bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] =
   { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC },
   { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64 },
   { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64 },
+  { "arm64", BFD_MACH_O_CPU_TYPE_ARM64 },
   { NULL, 0}
 };
 
diff --git a/include/mach-o/ChangeLog b/include/mach-o/ChangeLog
index c4a4a2c300..3624f8ac33 100644
--- a/include/mach-o/ChangeLog
+++ b/include/mach-o/ChangeLog
@@ -1,3 +1,7 @@
+2014-03-26  Tristan Gingold  <gingold@adacore.com>
+
+	* loader.h (bfd_mach_o_cpu_type): Add BFD_MACH_O_CPU_TYPE_ARM64.
+
 2014-03-17  Tristan Gingold  <gingold@adacore.com>
 
 	* unwind.h: New file.
@@ -14,7 +18,7 @@
 
 	* loader.h (bfd_mach_o_load_command_type): Add
 	BFD_MACH_O_LC_MAIN, BFD_MACH_O_LC_DATA_IN_CODE,
-	BFD_MACH_O_LC_SOURCE_VERSION and	BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS.
+	BFD_MACH_O_LC_SOURCE_VERSION and BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS.
 	(BFD_MACH_O_REFERENCE_MASK): Adjust value.
 	(BFD_MACH_O_N_REF_TO_WEAK): New definition.
 	(BFD_MACH_O_N_ARM_THUMB_DEF, BFD_MACH_O_N_SYMBOL_RESOLVER): Likewise.
diff --git a/include/mach-o/loader.h b/include/mach-o/loader.h
index f7b2b42c36..952346d6e6 100644
--- a/include/mach-o/loader.h
+++ b/include/mach-o/loader.h
@@ -48,8 +48,12 @@ typedef enum bfd_mach_o_cpu_type
   BFD_MACH_O_CPU_TYPE_I860 = 15,
   BFD_MACH_O_CPU_TYPE_ALPHA = 16,
   BFD_MACH_O_CPU_TYPE_POWERPC = 18,
-  BFD_MACH_O_CPU_TYPE_POWERPC_64 = (BFD_MACH_O_CPU_TYPE_POWERPC | BFD_MACH_O_CPU_IS64BIT),
-  BFD_MACH_O_CPU_TYPE_X86_64 = (BFD_MACH_O_CPU_TYPE_I386 | BFD_MACH_O_CPU_IS64BIT)
+  BFD_MACH_O_CPU_TYPE_POWERPC_64 =
+    (BFD_MACH_O_CPU_TYPE_POWERPC | BFD_MACH_O_CPU_IS64BIT),
+  BFD_MACH_O_CPU_TYPE_X86_64 =
+    (BFD_MACH_O_CPU_TYPE_I386 | BFD_MACH_O_CPU_IS64BIT),
+  BFD_MACH_O_CPU_TYPE_ARM64 =
+    (BFD_MACH_O_CPU_TYPE_ARM | BFD_MACH_O_CPU_IS64BIT)
 }
 bfd_mach_o_cpu_type;