diff --git a/flake.nix b/flake.nix
index a61699b69..8460201b0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -189,7 +189,7 @@
           };
 
           nix = final.callPackage ./package.nix {
-            inherit versionSuffix;
+            inherit versionSuffix officialRelease;
             stdenv = currentStdenv;
             busybox-sandbox-shell = final.busybox-sandbox-shell or final.default-busybox-sandbox-shell;
           };
@@ -365,7 +365,7 @@
             pkgs: stdenv:
             let
               nix = pkgs.callPackage ./package.nix {
-                inherit stdenv versionSuffix;
+                inherit stdenv officialRelease versionSuffix;
                 busybox-sandbox-shell = pkgs.busybox-sandbox-shell or pkgs.default-busybox-sandbox;
                 internalApiDocs = true;
               };
diff --git a/package.nix b/package.nix
index 005bdc6b1..9c108308d 100644
--- a/package.nix
+++ b/package.nix
@@ -386,6 +386,8 @@ stdenv.mkDerivation (finalAttrs: {
   passthru = {
     inherit (__forDefaults) boehmgc-nix editline-lix build-release-notes;
 
+    inherit officialRelease;
+
     # The collection of dependency logic for this derivation is complicated enough that
     # it's easier to parameterize the devShell off an already called package.nix.
     mkDevShell =