diff --git a/flake.nix b/flake.nix
index 88b94f5..c9121e5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -169,7 +169,7 @@ rust-project TODO: write shell script for automatically updating `cargoHash`
           };
         };
 
-        options.systemd.timers.time_tracker = let
+        config.systemd.timers.time_tracker = let
           cfg = config.services.time_tracker;
           pkg = self.packages.${system}.time_tracker;
         in lib.mkIf cfg.enable {