diff --git a/frontend/js/frontend.js b/frontend/js/frontend.js
index 37159dd..c9d4524 100644
--- a/frontend/js/frontend.js
+++ b/frontend/js/frontend.js
@@ -1,3 +1,7 @@
+if (typeof FAIRHOPPER_WS_SERVER === "undefined") {
+    var FAIRHOPPER_WS_SERVER = "ws://127.0.0.1:8011";
+}
+
 const BOARD_ICONS = {
     PLAYER: "😀",
     PLAYER_ON_DESTINATION: "😎",