diff --git a/pkgs/development/ocaml-modules/janestreet/0.15.nix b/pkgs/development/ocaml-modules/janestreet/0.15.nix
index bc2f2f24e0a9..3f3ee5ae88f4 100644
--- a/pkgs/development/ocaml-modules/janestreet/0.15.nix
+++ b/pkgs/development/ocaml-modules/janestreet/0.15.nix
@@ -410,6 +410,13 @@ with self;
     hash = "1lxqsj5k3v8p7g802vj1xc6bs5wrfpszh3q61xvpcd42pf3ahma9";
     meta.description = "Compile-time configuration for Jane Street libraries";
     buildInputs = [ dune-configurator ppx_assert stdio ];
+    patches = [
+      # remove on next release
+      (fetchpatch {
+        url = "https://github.com/janestreet/jst-config/commit/e5fdac6e5df9ba93e014a4d2db841fdbf209446f.patch";
+        sha256 = "sha256-8hVC76z5ilYD/++xRHVswy/l+zzDt63jH4hfSJ/rPaA=";
+      })
+    ];
   };
 
   ocaml-compiler-libs = janePackage {