1 files changed, 3 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/calendar/default.nix b/nixpkgs/pkgs/development/ocaml-modules/calendar/default.nix
index 29927aae04a7..4c089b76f3ed 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/calendar/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/calendar/default.nix
@@ -9,7 +9,9 @@ stdenv.mkDerivation rec {
     sha256 = "04pvhwb664g3s644c7v7419a3kvf5s3pynkhmk5j59dvlfm1yf0f";
   };
 
-  buildInputs = [ ocaml findlib ];
+  nativeBuildInputs = [ ocaml findlib ];
+
+  strictDeps = true;
 
   createFindlibDestdir = true;