diff --git a/pkgs/by-name/mi/milu/package.nix b/pkgs/by-name/mi/milu/package.nix
index 0bbf71a24223..c77fd35ad05b 100644
--- a/pkgs/by-name/mi/milu/package.nix
+++ b/pkgs/by-name/mi/milu/package.nix
@@ -5,6 +5,7 @@
   unzip,
   pkg-config,
   glib,
+  llvm,
   llvmPackages,
 }:
 
@@ -13,38 +14,44 @@ stdenv.mkDerivation {
   version = "2016-05-09";
 
   src = fetchFromGitHub {
-    sha256 = "14cglw04cliwlpvw7qrs6rfm5sv6qa558d7iby5ng3wdjcwx43nk";
-    rev = "b5f2521859c0319d321ad3c1ad793b826ab5f6e1";
-    repo = "Milu";
     owner = "yuejia";
+    repo = "Milu";
+    rev = "b5f2521859c0319d321ad3c1ad793b826ab5f6e1";
+    hash = "sha256-0w7SOZONj2eLX/E0VIrCZutSXTY648P3pTxSRgCnj5E=";
   };
 
   hardeningDisable = [ "format" ];
 
   preConfigure = ''
-    sed -i 's#/usr/bin/##g' Makefile
-  '';
-
-  installPhase = ''
-    mkdir -p $out/bin
-    cp bin/milu $out/bin
+    substituteInPlace Makefile \
+      --replace-fail /usr/bin/ "" \
+      --replace-fail bin/milu $out/bin/milu
   '';
 
   nativeBuildInputs = [
     pkg-config
     unzip
   ];
+
   buildInputs = [
     glib
+    llvm.dev
     llvmPackages.libclang
   ];
 
+  preBuild = ''
+    mkdir -p $out/bin
+  '';
+
   env.NIX_CFLAGS_COMPILE = toString [
     "-Wno-incompatible-pointer-types"
     "-Wno-implicit-function-declaration"
     "-Wno-error=int-conversion"
   ];
 
+  # `make all` already installs the binaries
+  dontInstall = true;
+
   meta = {
     description = "Higher Order Mutation Testing Tool for C and C++ programs";
     homepage = "https://github.com/yuejia/Milu";