diff --git a/modules/shell/git.nix b/modules/shell/git.nix
index e36928b..f1de5e8 100644
--- a/modules/shell/git.nix
+++ b/modules/shell/git.nix
@@ -11,7 +11,7 @@
       userEmail = "tobias@opel-online.de";
       lfs.enable = true;
       signing = {
-        key = "/home/${user}/.ssh/id_ed25519_sk_rk_yubiC";
+        key = "/home/${user}/.ssh/id_ed25519_sk_rk_red";
         signByDefault = true;
       };
       extraConfig = {