diff --git a/pkgs/development/compilers/rust/default.nix b/pkgs/development/compilers/rust/default.nix
index 5c0cf10fbc9a..0324aca1e4ec 100644
--- a/pkgs/development/compilers/rust/default.nix
+++ b/pkgs/development/compilers/rust/default.nix
@@ -69,7 +69,6 @@ in
 
         # Use boot package set to break cycle
         inherit (bootstrapRustPackages) cargo rustc;
-        rustPlatform = bootRustPlatform;
       } // lib.optionalAttrs (stdenv.cc.isClang && stdenv.hostPlatform == stdenv.buildPlatform) {
         stdenv = llvmBootstrapForDarwin.stdenv;
         pkgsBuildBuild = pkgsBuildBuild // { targetPackages.stdenv = llvmBootstrapForDarwin.stdenv; };
diff --git a/pkgs/development/compilers/rust/rustc.nix b/pkgs/development/compilers/rust/rustc.nix
index 500b63c69275..5d1430344d0d 100644
--- a/pkgs/development/compilers/rust/rustc.nix
+++ b/pkgs/development/compilers/rust/rustc.nix
@@ -1,7 +1,7 @@
 { lib, stdenv, removeReferencesTo, pkgsBuildBuild, pkgsBuildHost, pkgsBuildTarget, targetPackages
 , llvmShared, llvmSharedForBuild, llvmSharedForHost, llvmSharedForTarget, llvmPackages
 , fetchurl, file, python3
-, darwin, cargo, cmake, rust, rustc, rustPlatform
+, darwin, cargo, cmake, rust, rustc
 , pkg-config, openssl, xz
 , libiconv
 , which, libffi