diff --git a/pkgs/development/ocaml-modules/wasm/default.nix b/pkgs/development/ocaml-modules/wasm/default.nix
index 3af1bd00a19b..18d3d7795ac9 100644
--- a/pkgs/development/ocaml-modules/wasm/default.nix
+++ b/pkgs/development/ocaml-modules/wasm/default.nix
@@ -1,6 +1,7 @@
 { stdenv, lib, fetchFromGitHub, ocaml, findlib, ocamlbuild }:
 
 if lib.versionOlder ocaml.version "4.08"
+|| lib.versionAtLeast ocaml.version "5.0"
 then throw "wasm is not available for OCaml ${ocaml.version}"
 else