diff --git a/pkgs/development/ocaml-modules/ppx_yojson_conv/default.nix b/pkgs/development/ocaml-modules/ppx_yojson_conv/default.nix
new file mode 100644
index 000000000000..3feeaa84ab47
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ppx_yojson_conv/default.nix
@@ -0,0 +1,34 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  ppx_js_style,
+  ppx_yojson_conv_lib,
+  ppxlib,
+}:
+buildDunePackage rec {
+  pname = "ppx_yojson_conv";
+  version = "0.15.1";
+  duneVersion = "3";
+  minimumOCamlVersion = "4.08.0";
+
+  src = fetchFromGitHub {
+    owner = "janestreet";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-lSOUSMVgsRiArEhFTKpAj2yFBPbtaIc/SxdPA+24xXs=";
+  };
+
+  propagatedBuildInputs = [
+    ppx_js_style
+    ppx_yojson_conv_lib
+    ppxlib
+  ];
+
+  meta = with lib; {
+    description = "A PPX syntax extension that generates code for converting OCaml types to and from Yojson";
+    homepage = "https://github.com/janestreet/ppx_yojson_conv";
+    maintainers = with maintainers; [djacu];
+    license = with licenses; [mit];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index e929a59cd70f..7276fab86d8a 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1314,6 +1314,8 @@ let
 
     ppx_tools_versioned = callPackage ../development/ocaml-modules/ppx_tools_versioned { };
 
+    ppx_yojson_conv = callPackage ../development/ocaml-modules/ppx_yojson_conv {};
+
     ppx_yojson_conv_lib = callPackage ../development/ocaml-modules/ppx_yojson_conv_lib {};
 
     prettym = callPackage ../development/ocaml-modules/prettym { };