diff --git a/modules/fish/fish.nix b/modules/fish/fish.nix
index 8432357..452a93f 100644
--- a/modules/fish/fish.nix
+++ b/modules/fish/fish.nix
@@ -79,7 +79,7 @@ in
           jctl = "journalctl -p 3 -xb";
 
           # Rebuild the system, and reclaim disk from old generations.
-          update = "sudo nixos-rebuild switch";
+          update = "sudo nixos-rebuild switch --flake .#${config.networking.hostName}";
           cleanup = "sudo nix-collect-garbage -d";
         };