diff --git a/flake.nix b/flake.nix
index ec37fdd9..03d9c8dd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -148,6 +148,7 @@
         name = "nac3-dev-shell";
         buildInputs = with pkgs; [
           # build dependencies
+          llvmPackages_14.bintools # brings in llvm-link. Used by `nac3standalone/demo/run_demo.sh --lli`
           packages.x86_64-linux.llvm-nac3
           llvmPackages_14.clang  # demo
           packages.x86_64-linux.llvm-tools-irrt