diff --git a/grammars.nix b/grammars.nix
index 62db34649d187..204a103bfc68c 100644
--- a/grammars.nix
+++ b/grammars.nix
@@ -18,7 +18,9 @@ let
         rev = grammar.source.rev;
         allRefs = true;
       };
-    in clangStdenv.mkDerivation rec {
+      mkDerivation =
+        (if stdenv.isDarwin then clangStdenv else stdenv).mkDerivation;
+    in mkDerivation rec {
       # see https://github.com/NixOS/nixpkgs/blob/fbdd1a7c0bc29af5325e0d7dd70e804a972eb465/pkgs/development/tools/parsing/tree-sitter/grammar.nix
 
       pname = "helix-tree-sitter-${grammar.name}";