diff --git a/pkgs/development/tools/misc/binutils/default.nix b/pkgs/development/tools/misc/binutils/default.nix
index 679a10a517d..c937176f74a 100644
--- a/pkgs/development/tools/misc/binutils/default.nix
+++ b/pkgs/development/tools/misc/binutils/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchurl, noSysDirs, zlib, cross ? null, gold ? false, bison ? null, flex2535 ? null, bc ? null, dejagnu ? null }:
 
 let
-    basename = "binutils-2.21";
+    basename = "binutils-2.21a";
 in
 stdenv.mkDerivation rec {
   name = basename + stdenv.lib.optionalString (cross != null) "-${cross.config}";
 
   src = fetchurl {
     url = "mirror://gnu/binutils/${basename}.tar.bz2";
-    sha256 = "1iyhc42zfa0j2gaxy4zvpk47sdqj4rqvib0mb8597ss8yidyrav0";
+    sha256 = "0m7nmd7gc9d9md43wbrv65hz6lbi2crqwryzpigv19ray1lzmv6d";
   };
 
   patches = [