diff --git a/worker/worker.js b/worker/worker.js
index 03eabfc..51c6201 100644
--- a/worker/worker.js
+++ b/worker/worker.js
@@ -1,4 +1,5 @@
 const { handle_request_rs } = wasm_bindgen;
+var gen = false;
 
 addEventListener('fetch', event => {
   event.respondWith(handleRequest(event.request))
@@ -9,6 +10,9 @@ addEventListener('fetch', event => {
  * @param {Request} request
  */
 async function handleRequest(request) {
+  if (!gen) {
     await wasm_bindgen(wasm);
-    return await handle_request_rs(request);
+    gen = true;
+  }
+  return await handle_request_rs(request);
 }