diff --git a/example-service/src/client.rs b/example-service/src/client.rs
index cd08a18..0ff853d 100644
--- a/example-service/src/client.rs
+++ b/example-service/src/client.rs
@@ -43,7 +43,7 @@ async fn main() -> io::Result<()> {
     let name = flags.value_of("name").unwrap().into();
 
     let mut transport = tarpc::serde_transport::tcp::connect(server_addr, Json::default);
-    transport.config_mut().max_frame_length(4294967296);
+    transport.config_mut().max_frame_length(usize::MAX);
 
     // WorldClient is generated by the service attribute. It has a constructor `new` that takes a
     // config and any Transport as input.
diff --git a/example-service/src/server.rs b/example-service/src/server.rs
index fd12d60..59f9ed0 100644
--- a/example-service/src/server.rs
+++ b/example-service/src/server.rs
@@ -58,7 +58,7 @@ async fn main() -> io::Result<()> {
     // JSON transport is provided by the json_transport tarpc module. It makes it easy
     // to start up a serde-powered json serialization strategy over TCP.
     let mut listener = tarpc::serde_transport::tcp::listen(&server_addr, Json::default).await?;
-    listener.config_mut().max_frame_length(4294967296);
+    listener.config_mut().max_frame_length(usize::MAX);
     listener
         // Ignore accept errors.
         .filter_map(|r| future::ready(r.ok()))