diff --git a/web/index.html b/web/index.html
index 13e5b0e17d1363a77890aca84e1b55e833dd4dcb..c597754eab9e518def1bf93476d5041e252fb714 100644
--- a/web/index.html
+++ b/web/index.html
@@ -10,6 +10,7 @@   <canvas id="ebiten" width="1280" height="720"></canvas>
   <script src="wasm_exec.js"></script>
   <script>
     const go = new Go();
+    go.env = {};
     WebAssembly.instantiateStreaming(fetch("main.wasm"), go.importObject)
       .then((r) => go.run(r.instance));
   </script>