diff --git a/pkgs/by-name/pr/protoc-gen-elixir/package.nix b/pkgs/by-name/pr/protoc-gen-elixir/package.nix
index b51076f75f0f..96af826fd59f 100644
--- a/pkgs/by-name/pr/protoc-gen-elixir/package.nix
+++ b/pkgs/by-name/pr/protoc-gen-elixir/package.nix
@@ -25,20 +25,7 @@ mixRelease rec {
     hash = "sha256-T1uL3xXXmCkobJJhS3p6xMrJUyiim3AMwaG87/Ix7A8=";
   };
 
-  buildInputs = [ erlang ];
-
-  postBuild = ''
-    mix do escript.build
-  '';
-
-  installPhase = ''
-    runHook preInstall
-
-    mkdir -p $out/bin
-    cp protoc-gen-elixir $out/bin
-
-    runHook postInstall
-  '';
+  escriptBinName = "protoc-gen-elixir";
 
   passthru.updateScript = nix-update-script { };