diff --git a/pkgs/by-name/re/redu/package.nix b/pkgs/by-name/re/redu/package.nix
index fc117ebaa136..6d27b9b7a05a 100644
--- a/pkgs/by-name/re/redu/package.nix
+++ b/pkgs/by-name/re/redu/package.nix
@@ -18,8 +18,6 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   cargoHash = "sha256-ZUA9zmWzPvyFmqQFW3ShnQRqG3TODN7K8Ex1jrOZxd0=";
 
-  env.RUSTC_BOOTSTRAP = 1;
-
   passthru.updateScript = nix-update-script { };
 
   meta = {