diff --git a/pkgs/development/ocaml-modules/janestreet/0.14.nix b/pkgs/development/ocaml-modules/janestreet/0.14.nix
index 2e5a54ccad60..d22a87a92f3f 100644
--- a/pkgs/development/ocaml-modules/janestreet/0.14.nix
+++ b/pkgs/development/ocaml-modules/janestreet/0.14.nix
@@ -660,6 +660,13 @@ with self;
     propagatedBuildInputs = [ core_kernel ];
   };
 
+  pythonlib = janePackage {
+    pname = "pythonlib";
+    hash = "0qr0mh9jiv1ham5zlz9i4im23a1vh6x1yp6dp2db2s4icmfph639";
+    meta.description = "A library to help writing wrappers around ocaml code for python";
+    propagatedBuildInputs = [ ppx_expect ppx_let ppx_python stdio typerep ];
+  };
+
   re2 = janePackage {
     pname = "re2";
     hash = "1j7dizls6lkz3i9dgf8nq2fm382mfbrmz72ci066zl3hkgdq8xwc";