diff --git a/wasm/mix-fetch/internal-dev/worker.js b/wasm/mix-fetch/internal-dev/worker.js
index 5b98d2c20f..55232ea581 100644
--- a/wasm/mix-fetch/internal-dev/worker.js
+++ b/wasm/mix-fetch/internal-dev/worker.js
@@ -252,7 +252,7 @@ async function main() {
 
     // load rust WASM package
     sendLog('Loading Rust WASM...');
-    await wasm_bindgen(RUST_WASM_URL);
+    await wasm_bindgen({ module_or_path: RUST_WASM_URL });
     sendLog('Loaded Rust WASM');
 
     // load go WASM package