diff --git a/pkgs/development/tools/ocaml/dune/default.nix b/pkgs/development/tools/ocaml/dune/default.nix
index ef0f5c4fabd4..031cbcca21d8 100644
--- a/pkgs/development/tools/ocaml/dune/default.nix
+++ b/pkgs/development/tools/ocaml/dune/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, ocaml, findlib, opaline }:
+{ stdenv, fetchurl, ocaml, findlib }:
 
 if !stdenv.lib.versionAtLeast ocaml.version "4.02"
 then throw "dune is not available for OCaml ${ocaml.version}"
@@ -15,15 +15,13 @@ stdenv.mkDerivation rec {
   buildInputs = [ ocaml findlib ];
 
   buildFlags = [ "release" ];
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+    "LIBDIR=$(OCAMLFIND_DESTDIR)"
+  ];
 
   dontAddPrefix = true;
 
-  installPhase = ''
-    runHook preInstall
-    ${opaline}/bin/opaline -prefix $out -libdir $OCAMLFIND_DESTDIR
-    runHook postInstall
-  '';
-
   meta = {
     homepage = "https://dune.build/";
     description = "A composable build system";