diff --git a/pkgs/development/ocaml-modules/uutf/default.nix b/pkgs/development/ocaml-modules/uutf/default.nix
index 86ce05644618..8c3c333c96a6 100644
--- a/pkgs/development/ocaml-modules/uutf/default.nix
+++ b/pkgs/development/ocaml-modules/uutf/default.nix
@@ -17,8 +17,9 @@
       throw "uutf is not available with OCaml ${ocaml.version}",
 }:
 
-stdenv.mkDerivation {
-  name = "ocaml${ocaml.version}-uutf-${version}";
+stdenv.mkDerivation (finalAttrs: {
+  name = "ocaml${ocaml.version}-${finalAttrs.pname}-${finalAttrs.version}";
+  pname = "uutf";
   inherit version;
 
   src = fetchurl {
@@ -56,4 +57,4 @@ stdenv.mkDerivation {
     mainProgram = "utftrip";
     inherit (ocaml.meta) platforms;
   };
-}
+})