diff --git a/pkgs/by-name/cu/cups/package.nix b/pkgs/by-name/cu/cups/package.nix
index eb2d370038a5..73330325f966 100644
--- a/pkgs/by-name/cu/cups/package.nix
+++ b/pkgs/by-name/cu/cups/package.nix
@@ -32,6 +32,8 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-AzlYcgS0+UKN0FkuswHewL+epuqNzl2WkNVr5YWrqS0=";
   };
 
+  __structuredAttrs = true;
+
   outputs = [
     "out"
     "lib"