diff --git a/flake.nix b/flake.nix
index 7311a2471..9addccd63 100644
--- a/flake.nix
+++ b/flake.nix
@@ -466,6 +466,8 @@
           postInstall = ''
             mkdir -p $doc/nix-support
             echo "doc manual $doc/share/doc/nix/manual" >> $doc/nix-support/hydra-build-products
+            mkdir -p $out/nix-support
+            echo "file binary-dist $out/bin/nix" >> $out/nix-support/hydra-build-products
           '';
 
           doInstallCheck = true;