diff --git a/src/lib.rs b/src/lib.rs
index f7d8192..8399e9a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -91,7 +91,7 @@ use crate::trie::merkle_tree::{bytes_to_bitvec, MerkleTree};
 #[cfg(not(feature = "std"))]
 use alloc::{format, vec::Vec};
 
-pub(crate) type SByteVec = smallvec::SmallVec<[u8; 32]>;
+pub type SByteVec = smallvec::SmallVec<[u8; 32]>;
 
 pub(crate) trait EncodeExt: parity_scale_codec::Encode {
     fn encode_sbytevec(&self) -> SByteVec {