diff --git a/lib/fudo/client/dns.nix b/lib/fudo/client/dns.nix
index bde22e6..103a763 100644
--- a/lib/fudo/client/dns.nix
+++ b/lib/fudo/client/dns.nix
@@ -83,7 +83,7 @@ in {
 
       groups = {
         "${cfg.user}" = {
-          members = cfg.user;
+          members = [ cfg.user ];
         };
       };
     };