diff --git a/package/origlang-slice-in-box/src/lib.rs b/package/origlang-slice-in-box/src/lib.rs
index db5a6ba..8270167 100644
--- a/package/origlang-slice-in-box/src/lib.rs
+++ b/package/origlang-slice-in-box/src/lib.rs
@@ -1,5 +1,8 @@
-use std::alloc::{alloc, Layout};
-use std::mem::MaybeUninit;
+#![no_std]
+
+extern crate alloc;
+
+use alloc::boxed::Box;
 
 pub type BoxedSlice<I> = Box<[I]>;