1 files changed, 3 insertions, 1 deletions
diff --git a/jsonrpc/examples/tokio_server/src/main.rs b/jsonrpc/examples/tokio_server/src/main.rs
index 978c90a..ce77cd3 100644
--- a/jsonrpc/examples/tokio_server/src/main.rs
+++ b/jsonrpc/examples/tokio_server/src/main.rs
@@ -1,3 +1,5 @@
+use std::sync::Arc;
+
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 
@@ -48,7 +50,7 @@ async fn main() {
     // Creates a new server
     let server = Server::builder("tcp://127.0.0.1:6000")
         .expect("Create a new server builder")
-        .service(calc)
+        .service(Arc::new(calc))
         .build()
         .await
         .expect("start a new server");