diff --git a/nixos-configurations/tvpc/default.nix b/nixos-configurations/tvpc/default.nix
index f24e5f1..222d785 100644
--- a/nixos-configurations/tvpc/default.nix
+++ b/nixos-configurations/tvpc/default.nix
@@ -10,6 +10,7 @@
   networking.hostName = "tvpc";
 
   home-manager.users.thiloho = { pkgs, lib, ... }: {
+    programs.git.signing.key = "5ECD00BDC15A987E";
     home.stateVersion = "23.05";
   };
   system.stateVersion = "23.05";