diff --git a/systems.nix b/systems.nix
index 60b12db..e370b92 100644
--- a/systems.nix
+++ b/systems.nix
@@ -34,5 +34,6 @@ builtins.mapAttrs (_hostName: systemConfig: defaultConfig // systemConfig) {
     wayland.enable = false;
     ssh.publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILw1iNuPnX9NGt+UAvBDzkk26d1e4nF+XX2FMm+IRWtt";
     address.private = common.localIpAddr 228;
+    git.signing.key = "4E323F914029E976";
   };
 }