diff --git a/modules/home-manager/server/programs/git.nix b/modules/home-manager/server/programs/git.nix
index 4a259c3..9dd8d8b 100644
--- a/modules/home-manager/server/programs/git.nix
+++ b/modules/home-manager/server/programs/git.nix
@@ -41,7 +41,7 @@ in
         }
         // lib.optionalAttrs (args ? nixosConfig) {
           commit.gpgsign = osConfig.yubikey.enable;
-          user.signingkey = "${config.home.homeDirectory}/.ssh/id_${osConfig.yubikey.signing}.pub";
+          user.signingkey = "${config.home.homeDirectory}/.ssh/id_${osConfig.yubikey.signing}_sign.pub";
           gpg.format = "ssh";
         };
     };