diff --git a/rust/arrow/src/lib.rs b/rust/arrow/src/lib.rs
index 9c2ca2723ce..68a820bfc54 100644
--- a/rust/arrow/src/lib.rs
+++ b/rust/arrow/src/lib.rs
@@ -135,7 +135,7 @@
 // introduced to ignore lint errors when upgrading from 2020-04-22 to 2020-11-14
 #![allow(clippy::float_equality_without_abs, clippy::type_complexity)]
 
-mod alloc;
+pub mod alloc;
 mod arch;
 pub mod array;
 pub mod bitmap;