1 files changed, 3 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/piqi/default.nix b/nixpkgs/pkgs/development/ocaml-modules/piqi/default.nix
index faeb804d8aa8..45d65a5be04f 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/piqi/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/piqi/default.nix
@@ -12,9 +12,11 @@ stdenv.mkDerivation rec {
     sha256 = "0v04hs85xv6d4ysqxyv1dik34dx49yab9shpi4x7iv19qlzl7csb";
   };
 
-  buildInputs = [ ocaml findlib which ];
+  nativeBuildInputs = [ ocaml findlib which ];
   propagatedBuildInputs = [ sedlex_2 xmlm easy-format base64 ];
 
+  strictDeps = true;
+
   patches = [ ./no-ocamlpath-override.patch ];
 
   createFindlibDestdir = true;