diff --git a/src/server.ts b/src/server.ts
index b033302..2bd34f0 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -52,13 +52,13 @@ server.listen(port, () => {
 });
 
 for await (const [buff] of receiver) {
-  const jobId = buff.slice(0, 32).toString();
+  const jobId = buff.subarray(0, 32).toString();
   console.log(`Received ${jobId}`);
   const res = clients[jobId];
   if (!res) {
     continue;
   }
   res.write('event: message\n');
-  res.write(`data: ${encodeURIComponent(buff.slice(32).toString())}\n`);
+  res.write(`data: ${encodeURIComponent(buff.subarray(32).toString())}\n`);
   res.write('id: 0\n');
 }