diff --git a/flake.nix b/flake.nix
index fd6cb95..889414b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,6 +26,7 @@
     in {
       devShells.default = pkgs.mkShell rec {
         buildInputs = with pkgs; [
+          cargo-watch
           pkg-config
           rs-toolchain
           udev