diff --git a/pkgs/build-support/rust/build-rust-package/sysroot/default.nix b/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
index dc0f3e792cad0..a6d53056d9c7c 100644
--- a/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
+++ b/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
@@ -29,4 +29,7 @@ in rustPlatform.buildRustPackage {
     host=${rust.toRustTarget stdenv.buildPlatform}
     cp -r $RUST_SYSROOT/lib/rustlib/$host $out
   '';
+
+  # allows support for cross-compilation
+  meta.platforms = lib.platforms.all;
 }