diff --git a/pkgs/development/tools/ocaml/oasis/default.nix b/pkgs/development/tools/ocaml/oasis/default.nix
index 3ab935705a2d..a5260b499c45 100644
--- a/pkgs/development/tools/ocaml/oasis/default.nix
+++ b/pkgs/development/tools/ocaml/oasis/default.nix
@@ -13,9 +13,11 @@ stdenv.mkDerivation {
 
   buildInputs =
     [
-      ocaml findlib ocaml_data_notation ocaml_typeconv ocamlmod ocamlify ounit
+      ocaml findlib ocaml_typeconv ocamlmod ocamlify ounit
     ];
 
+  propagatedBuildInputs = [ ocaml_data_notation ];
+
   configurePhase = "ocaml setup.ml -configure --prefix $out";
   buildPhase     = "ocaml setup.ml -build";
   installPhase   = "ocaml setup.ml -install";