diff --git a/pkgs/development/tools/ocaml/ocamlmod/default.nix b/pkgs/development/tools/ocaml/ocamlmod/default.nix
index f4b614db8db5..3ca84aabd0c4 100644
--- a/pkgs/development/tools/ocaml/ocamlmod/default.nix
+++ b/pkgs/development/tools/ocaml/ocamlmod/default.nix
@@ -26,5 +26,6 @@ buildDunePackage (finalAttrs: {
     homepage = "https://github.com/gildor478/ocamlmod";
     description = "Generate OCaml modules from source files";
     mainProgram = "ocamlmod";
+    license = lib.licenses.WITH lib.licenses.lgpl21Only lib.licenses.ocamlLgplLinkingException;
   };
 })