diff --git a/nixos/modules/programs/git.nix b/nixos/modules/programs/git.nix
index 6c60daf21f9f..06ce374b1992 100644
--- a/nixos/modules/programs/git.nix
+++ b/nixos/modules/programs/git.nix
@@ -20,7 +20,7 @@ in
       };
 
       config = mkOption {
-        type = types.attrs;
+        type = with types; attrsOf (attrsOf anything);
         default = { };
         example = {
           init.defaultBranch = "main";