diff --git a/neopixel.js b/neopixel.js
index 83693d1..f7717a7 100644
--- a/neopixel.js
+++ b/neopixel.js
@@ -311,7 +311,12 @@ function bin_to_json(bin) {
 
 let socket = undefined;
 function new_websocket() {
-    socket = new WebSocket("ws://localhost:9002");
+    if (location.hostname == "") {
+	socket = new WebSocket("ws://localhost:9002");
+    } else {
+	socket = new WebSocket(`ws://${location.hostname}:9002`);
+    }
+
     socket.binaryType = "arraybuffer";
 
     socket.onopen = function(e) {
@@ -347,4 +352,4 @@ function new_websocket() {
     };
 }
 
-new_websocket();
\ No newline at end of file
+new_websocket();