diff --git a/modules/secrets/default.nix b/modules/secrets/default.nix
index dfb897f..e03dce3 100644
--- a/modules/secrets/default.nix
+++ b/modules/secrets/default.nix
@@ -21,6 +21,7 @@ with lib;
         mode = "0440";
         group = config.users.groups.keys.name;
         sopsFile = ../secrets/git-gpg-private-key;
+        format = "binary";
       };
 
       nix.gcRoots = [ inputs.sops-nix ];