diff --git a/src/v1.rs b/src/v1.rs
index ff7239b..b80f531 100644
--- a/src/v1.rs
+++ b/src/v1.rs
@@ -17,3 +17,4 @@ tonic::include_proto!("greptime.v1");
 pub const GREPTIME_GRPC_DESC: &[u8] = tonic::include_file_descriptor_set!("greptime_grpc_desc");
 
 pub mod meta;
+pub mod region;