diff --git a/node/storage/src/log_store/load_chunk/chunk_data.rs b/node/storage/src/log_store/load_chunk/chunk_data.rs
index e816d4d..86b22eb 100644
--- a/node/storage/src/log_store/load_chunk/chunk_data.rs
+++ b/node/storage/src/log_store/load_chunk/chunk_data.rs
@@ -128,6 +128,12 @@ impl DataRange for Subtree {
     }
 }
 
+impl Default for EntryBatchData {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl EntryBatchData {
     pub fn new() -> Self {
         EntryBatchData::Incomplete(IncompleteData {
diff --git a/node/storage/src/log_store/load_chunk/mod.rs b/node/storage/src/log_store/load_chunk/mod.rs
index 0a68dbc..9d60d25 100644
--- a/node/storage/src/log_store/load_chunk/mod.rs
+++ b/node/storage/src/log_store/load_chunk/mod.rs
@@ -20,7 +20,7 @@ use zgs_spec::{
 };
 
 use super::SealAnswer;
-use chunk_data::EntryBatchData;
+pub use chunk_data::EntryBatchData;
 use seal::SealInfo;
 
 #[derive(Debug, Encode, Decode, Deserialize, Serialize)]
diff --git a/node/storage/src/log_store/mod.rs b/node/storage/src/log_store/mod.rs
index c51c2e0..b143a4c 100644
--- a/node/storage/src/log_store/mod.rs
+++ b/node/storage/src/log_store/mod.rs
@@ -14,7 +14,7 @@ use self::tx_store::{BlockHashAndSubmissionIndex, TxStatus};
 
 pub mod config;
 mod flow_store;
-mod load_chunk;
+pub mod load_chunk;
 pub mod log_manager;
 mod metrics;
 mod seal_task_manager;