diff --git a/pkgs/development/tools/ocaml/js_of_ocaml/3.0.nix b/pkgs/development/tools/ocaml/js_of_ocaml/3.0.nix
index a4852a8aba0..d8c289015b2 100644
--- a/pkgs/development/tools/ocaml/js_of_ocaml/3.0.nix
+++ b/pkgs/development/tools/ocaml/js_of_ocaml/3.0.nix
@@ -9,6 +9,8 @@ stdenv.mkDerivation rec {
 
 	buildInputs = [ ocaml findlib jbuilder ocaml-migrate-parsetree ppx_tools_versioned ];
 
+  postPatch = "patchShebangs lib/generate_stubs.sh";
+
 	propagatedBuildInputs = [ js_of_ocaml-compiler uchar ];
 
 	buildPhase = "jbuilder build -p js_of_ocaml";