diff --git a/candid_server/src/client_handler.rs b/candid_server/src/client_handler.rs
index bf4b08f..7a1cef7 100644
--- a/candid_server/src/client_handler.rs
+++ b/candid_server/src/client_handler.rs
@@ -3,7 +3,7 @@ use std::net::TcpStream;
 use std::sync::mpsc;
 use std::thread;
 
-use byteorder::{NetworkEndian, ReadBytesExt};
+use byteorder::{NetworkEndian, ReadBytesExt, WriteBytesExt};
 
 use socketcan::{CANFrame, CANSocket};
 
@@ -63,6 +63,7 @@ pub fn new_client_handler(
 }
 
 fn write_frame(connection: &mut TcpStream, frame: CANFrame) -> Result<(), std::io::Error> {
-    connection.write_fmt(format_args!("{:X}\n", frame))?;
+    connection.write_u32::<NetworkEndian>(frame.id())?;
+    connection.write(&frame.data())?;
     Ok(())
 }