1 files changed, 2 insertions, 6 deletions
diff --git a/pkgs/development/ocaml-modules/cryptgps/default.nix b/pkgs/development/ocaml-modules/cryptgps/default.nix
index 114aa7e5ffd..cb85ebce501 100644
--- a/pkgs/development/ocaml-modules/cryptgps/default.nix
+++ b/pkgs/development/ocaml-modules/cryptgps/default.nix
@@ -1,12 +1,8 @@
 {stdenv, fetchurl, ocaml, findlib}:
 
-let
-  ocaml_version = (builtins.parseDrvName ocaml.name).version;
-  version = "0.2.1";
-in
-
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "ocaml-cryptgps-${version}";
+  version = "0.2.1";
 
   src = fetchurl {
     url = "http://download.camlcity.org/download/cryptgps-0.2.1.tar.gz";