diff --git a/pkgs/development/compilers/ocaml/3.08.0.nix b/pkgs/development/compilers/ocaml/3.08.0.nix
index fd684fd93e8..3b0ab46bcd5 100644
--- a/pkgs/development/compilers/ocaml/3.08.0.nix
+++ b/pkgs/development/compilers/ocaml/3.08.0.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   builder = ./builder.sh;
   src = fetchurl {
     url = http://tarballs.nixos.org/ocaml-3.08.0.tar.gz;
-    md5 = "c6ef478362295c150101cdd2efcd38e0";
+    sha256 = "135g5waj7djzrj0dbc8z1llasfs2iv5asq41jifhldxb4l2b97mx";
   };
   configureScript = ./configure-3.08.0;
   dontAddPrefix = "True";