diff --git a/crane.nix b/crane.nix
index ffe9eb0..f7abf6e 100644
--- a/crane.nix
+++ b/crane.nix
@@ -109,6 +109,10 @@ let
       maintainers = with maintainers; [ zhaofengli ];
       platforms = platforms.linux ++ platforms.darwin;
     };
+
+    passthru = {
+      inherit nix;
+    };
   } // args // extraArgs);
 
   attic = mkAttic {
diff --git a/flake/devshells.nix b/flake/devshells.nix
index e7b1145..4f30d8e 100644
--- a/flake/devshells.nix
+++ b/flake/devshells.nix
@@ -97,7 +97,7 @@ in
           NIX_PATH = "nixpkgs=${pkgs.path}";
 
           # See comment in `attic/build.rs`
-          NIX_INCLUDE_PATH = "${lib.getDev pkgs.nixVersions.nix_2_24}/include";
+          NIX_INCLUDE_PATH = "${lib.getDev self'.packages.attic.passthru.nix}/include";
 
           # Used by `just with-nix` to build/test with alternative Nix versions.
           NIX_VERSIONS = config.attic.nix-versions.manifestFile;