diff --git a/modules/home-manager/server/programs/git.nix b/modules/home-manager/server/programs/git.nix
index f0d937e..54da280 100644
--- a/modules/home-manager/server/programs/git.nix
+++ b/modules/home-manager/server/programs/git.nix
@@ -30,6 +30,7 @@ in
         }
       ];
       extraConfig = {
+        user.signingkey = "6B890C16BB7F7971";
         "credential \"https://gitlab.com\"" = {
           helper = "${glab-pkg}/bin/glab auth git-credential";
         };