diff --git a/flake.nix b/flake.nix
index 2162a13..4d700f0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -98,7 +98,7 @@ rust-project TODO: write shell script for automatically updating `cargoHash`
           serviceConfig = {
             Type = "oneshot";
             ExecStart = ''
-              ${cfg.package}/bin/status_cloud --hddtemp-executable ${pkg.hddtemp} --config-file ${builtins.toString cfg.config_path}
+              ${cfg.package}/bin/status_cloud --hddtemp-executable ${pkgs.hddtemp} --config-file ${builtins.toString cfg.config_path}
             '';
           };
         };