diff --git a/pkgs/development/compilers/stanc/default.nix b/pkgs/by-name/st/stanc/package.nix
similarity index 66%
rename from pkgs/development/compilers/stanc/default.nix
rename to pkgs/by-name/st/stanc/package.nix
index 66671823d866..e5e6f79eb8cd 100644
--- a/pkgs/development/compilers/stanc/default.nix
+++ b/pkgs/by-name/st/stanc/package.nix
@@ -1,6 +1,7 @@
-{ lib
-, fetchFromGitHub
-, ocamlPackages
+{
+  lib,
+  fetchFromGitHub,
+  ocamlPackages,
 }:
 
 ocamlPackages.buildDunePackage rec {
@@ -17,15 +18,8 @@ ocamlPackages.buildDunePackage rec {
     hash = "sha256-ixZCix3oLZhzs08JbmbNCO0lhAu1Jf+KnpHNKlU/FaA=";
   };
 
-  # Error: This expression has type [ `Use_Sys_unix ]
-  postPatch = ''
-    substituteInPlace test/integration/run_bin_on_args.ml \
-      --replace "if Sys.file_exists (to_windows path) then to_windows cmd else cmd" "cmd"
-  '';
+  nativeBuildInputs = with ocamlPackages; [ menhir ];
 
-  nativeBuildInputs = with ocamlPackages; [
-    menhir
-  ];
   buildInputs = with ocamlPackages; [
     core_unix
     menhirLib
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5d8aea8cf319..de746faad219 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17091,10 +17091,6 @@ with pkgs;
 
   stalin = callPackage ../development/compilers/stalin { };
 
-  stanc = callPackage ../development/compilers/stanc {
-    ocamlPackages = ocaml-ng.ocamlPackages_4_14_janeStreet_0_15;
-  };
-
   metaBuildEnv = callPackage ../development/compilers/meta-environment/meta-build-env { };
 
   svd2rust = callPackage ../development/tools/rust/svd2rust { };