diff --git a/crypto/src/hash/mod.rs b/crypto/src/hash/mod.rs
index 367f415..0b0eed9 100644
--- a/crypto/src/hash/mod.rs
+++ b/crypto/src/hash/mod.rs
@@ -11,7 +11,7 @@ pub type Digest = <Hasher as HashFn>::Digest;
 // ================================================================================================
 
 #[inline(always)]
-fn exp_acc<B: StarkField, const N: usize, const M: usize>(base: [B; N], tail: [B; N]) -> [B; N] {
+fn _exp_acc<B: StarkField, const N: usize, const M: usize>(base: [B; N], tail: [B; N]) -> [B; N] {
     let mut result = base;
     for _ in 0..M {
         result.iter_mut().for_each(|r| *r = r.square());
diff --git a/crypto/src/lib.rs b/crypto/src/lib.rs
index ec50e8b..62954c2 100644
--- a/crypto/src/lib.rs
+++ b/crypto/src/lib.rs
@@ -3,8 +3,8 @@ pub use winterfell::math::{
     ExtensionOf, FieldElement, StarkField,
 };
 
-pub(crate) mod hash;
-pub(crate) mod merkle;
+pub mod hash;
+pub mod merkle;
 
 // TYPE ALIASES
 // ================================================================================================