diff --git a/nixos/server/package-configs/firefox-sync/default.nix b/nixos/server/package-configs/firefox-sync/default.nix
index db2b6ed..a97abf3 100644
--- a/nixos/server/package-configs/firefox-sync/default.nix
+++ b/nixos/server/package-configs/firefox-sync/default.nix
@@ -8,6 +8,7 @@ in {
   sops.secrets."sync-secrets".mode = "0440";
   sops.secrets."sync-secrets".owner = config.users.users.firefox-syncserver.name;
 
+  users.groups.firefox-syncserver = {};
   users.users.firefox-syncserver = {
     isSystemUser = true;
     group = "firefox-syncserver";