diff --git a/pkgs/tools/package-management/lix/common-nix-eval-jobs.nix b/pkgs/tools/package-management/lix/common-nix-eval-jobs.nix
index d3be7a626d97..8206dc355127 100644
--- a/pkgs/tools/package-management/lix/common-nix-eval-jobs.nix
+++ b/pkgs/tools/package-management/lix/common-nix-eval-jobs.nix
@@ -40,6 +40,14 @@ stdenv.mkDerivation {
   # point 'nix edit' and ofborg at the file that defines the attribute,
   # not this common file.
   pos = builtins.unsafeGetAttrPos "version" args;
+
+  # Since this package is intimately tied to a specific Nix release, we
+  # propagate the Nix used for building it to make it easier for users
+  # downstream to reference it.
+  passthru = {
+    nix = lix;
+  };
+
   meta = {
     description = "Hydra's builtin `hydra-eval-jobs` as a standalone tool";
     mainProgram = "nix-eval-jobs";
diff --git a/pkgs/tools/package-management/lix/default.nix b/pkgs/tools/package-management/lix/default.nix
index 21834a5299c3..1ec7f9e39553 100644
--- a/pkgs/tools/package-management/lix/default.nix
+++ b/pkgs/tools/package-management/lix/default.nix
@@ -12,6 +12,7 @@
   ncurses,
   stdenv,
   clangStdenv,
+  nix-fast-build,
 
   storeDir ? "/nix/store",
   stateDir ? "/nix/var",
@@ -85,6 +86,10 @@ let
         nix-eval-jobs = self.callPackage (callPackage ./common-nix-eval-jobs.nix nix-eval-jobs-args) {
           stdenv = lixStdenv;
         };
+
+        nix-fast-build = nix-fast-build.override {
+          inherit (self) nix-eval-jobs;
+        };
       }
     );
 in