diff --git a/pkgs/nixfiles-docs/default.nix b/pkgs/nixfiles-docs/default.nix
index 10cbc81..96808a0 100644
--- a/pkgs/nixfiles-docs/default.nix
+++ b/pkgs/nixfiles-docs/default.nix
@@ -19,6 +19,9 @@ stdenv.mkDerivation {
   installPhase = ''
     mkdir -p $out
     cp -r ./site/* $out/
+
+    mkdir -p $out/nix-support
+    echo "doc manual $out" >> $out/nix-support/hydra-build-products
   '';
 }