diff --git a/type-length-value-derive-test/src/lib.rs b/type-length-value-derive-test/src/lib.rs
index 5e32d4f5..42cf8d55 100644
--- a/type-length-value-derive-test/src/lib.rs
+++ b/type-length-value-derive-test/src/lib.rs
@@ -4,7 +4,7 @@
 //! testing the macro itself.
 
 #[cfg(test)]
-pub mod test {
+pub(crate) mod test {
     use {
         borsh::{BorshDeserialize, BorshSerialize},
         solana_borsh::v1::{get_instance_packed_len, try_from_slice_unchecked},