1 files changed, 2 insertions, 1 deletions
diff --git a/tools/deno_tcp.ts b/tools/deno_tcp.ts
index d744a09c1..2b259cd38 100644
--- a/tools/deno_tcp.ts
+++ b/tools/deno_tcp.ts
@@ -3,7 +3,8 @@
 // https://github.com/denoland/deno/issues/726 is completed.
 // Note: this is a keep-alive server.
 const addr = Deno.args[1] || "127.0.0.1:4500";
-const listener = Deno.listen("tcp", addr);
+const [hostname, port] = addr.split(":");
+const listener = Deno.listen({ hostname, port: Number(port) });
 const response = new TextEncoder().encode(
   "HTTP/1.1 200 OK\r\nContent-Length: 12\r\n\r\nHello World\n"
 );