diff --git a/flake.nix b/flake.nix
index ecd0381a2..c92f717d5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -197,7 +197,16 @@
               libgit2 = final.libgit2-nix;
               lowdown = final.lowdown-nix;
               busybox-sandbox-shell = final.busybox-sandbox-shell or final.default-busybox-sandbox-shell;
+            } // {
+              # this is a proper separate downstream package, but put
+              # here also for back compat reasons.
+              perl-bindings = final.nix-perl-bindings;
             };
+
+            nix-perl-bindings = final.callPackage ./perl {
+              inherit fileset stdenv;
+            };
+
           };
 
     in {
diff --git a/package.nix b/package.nix
index 52050496c..f6219e58a 100644
--- a/package.nix
+++ b/package.nix
@@ -1,5 +1,4 @@
 { lib
-, callPackage
 , stdenv
 , releaseTools
 , autoconf-archive
@@ -353,12 +352,6 @@ in {
 
   hardeningDisable = lib.optional stdenv.hostPlatform.isStatic "pie";
 
-  passthru = {
-    perl-bindings = callPackage ./perl {
-      inherit fileset stdenv;
-    };
-  };
-
   meta = {
     platforms = lib.platforms.unix;
     mainProgram = "nix";