1 files changed, 4 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/development/tools/ocaml/merlin/default.nix b/nixpkgs/pkgs/development/tools/ocaml/merlin/default.nix
index 1c9b549d6120..3db5d1377831 100644
--- a/nixpkgs/pkgs/development/tools/ocaml/merlin/default.nix
+++ b/nixpkgs/pkgs/development/tools/ocaml/merlin/default.nix
@@ -1,5 +1,5 @@
 { lib, fetchurl, buildDunePackage, substituteAll
-, dot-merlin-reader, dune_2, yojson, csexp, result }:
+, dot-merlin-reader, dune_2, yojson, csexp, result, menhirSdk }:
 
 buildDunePackage rec {
   pname = "merlin";
@@ -22,7 +22,9 @@ buildDunePackage rec {
     })
   ];
 
-  buildInputs = [ dot-merlin-reader yojson csexp result ];
+  strictDeps = true;
+
+  buildInputs = [ dot-merlin-reader yojson csexp result menhirSdk ];
 
   meta = with lib; {
     description = "An editor-independent tool to ease the development of programs in OCaml";