diff --git a/src/types.rs b/src/types.rs
index 861aa96..8d10ac3 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -41,7 +41,8 @@ impl Message {
         let mut bytes = [0u8; 16];
 
         bytes[0..4].copy_from_slice(&self.r#type.to_be_bytes());
-        bytes[4..8].copy_from_slice(&remote_addr.port().to_be_bytes());
+        let port = remote_addr.port() as u32;
+        bytes[4..8].copy_from_slice(&port.to_be_bytes());
         bytes[8..12].copy_from_slice(&u32::from(*remote_addr.ip()).to_be_bytes());
         let local_ip = match socket.local_addr().unwrap() {
             SocketAddr::V4(addr) => *addr.ip(),