diff --git a/pkgs/build-support/testers/lychee.nix b/pkgs/build-support/testers/lychee.nix
index bad1656cfc72..1976b6eb959f 100644
--- a/pkgs/build-support/testers/lychee.nix
+++ b/pkgs/build-support/testers/lychee.nix
@@ -40,6 +40,7 @@ let
     }:
     stdenv.mkDerivation (finalAttrs: {
       name = "lychee-link-check";
+      __structuredAttrs = true;
       inherit site;
       nativeBuildInputs = [
         finalAttrs.passthru.lychee