1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/gen/default.nix b/nixpkgs/pkgs/development/ocaml-modules/gen/default.nix
index 348f0cf2170b..626e6321acf8 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/gen/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/gen/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
   src = fetchFromGitHub {
     owner = "c-cube";
     repo = "gen";
-    rev = "${version}";
+    rev = version;
     sha256 = "14b8vg914nb0yp1hgxzm29bg692m0gqncjj43b599s98s1cwl92h";
   };