diff --git a/nixos/modules/services/audio/roon-server.nix b/nixos/modules/services/audio/roon-server.nix
index 4e4e79694bf..8c56634cb75 100644
--- a/nixos/modules/services/audio/roon-server.nix
+++ b/nixos/modules/services/audio/roon-server.nix
@@ -63,6 +63,7 @@ in {
     };
     users.users = singleton {
       name = cfg.user;
+      isSystemUser = true;
       description = "Roon Server user";
       groups = [ cfg.group "audio" ];
     };