diff --git a/node/rpc/src/zgs/api.rs b/node/rpc/src/zgs/api.rs
index e346fc2..aa13320 100644
--- a/node/rpc/src/zgs/api.rs
+++ b/node/rpc/src/zgs/api.rs
@@ -62,6 +62,9 @@ pub trait Rpc {
#[method(name = "getDataByNodeIndex")]
async fn get_data_by_node_index(&self, node_index: u64) -> RpcResult