diff --git a/krebs/3modules/repo-sync.nix b/krebs/3modules/repo-sync.nix
index 0312c62fd..488cc4dd8 100644
--- a/krebs/3modules/repo-sync.nix
+++ b/krebs/3modules/repo-sync.nix
@@ -148,10 +148,13 @@ let
     users.users.${cfg.user.name} = {
       inherit (cfg.user) home name uid;
       createHome = true;
+      group = cfg.user.name;
       description = "repo-sync user";
       isSystemUser = true;
     };
 
+    users.groups.${cfg.user.name} = {};
+
     systemd.timers = mapAttrs' (name: repo:
       nameValuePair "repo-sync-${name}" {
         description = "repo-sync timer";