diff --git a/Plugins/PackageToJS/Templates/platforms/browser.d.ts b/Plugins/PackageToJS/Templates/platforms/browser.d.ts
index 5b27cc90..a8089f8a 100644
--- a/Plugins/PackageToJS/Templates/platforms/browser.d.ts
+++ b/Plugins/PackageToJS/Templates/platforms/browser.d.ts
@@ -1,6 +1,6 @@
 import type { InstantiateOptions, ModuleSource } from "../instantiate.js"
 
-export async function defaultBrowserSetup(options: {
+export function defaultBrowserSetup(options: {
     module: ModuleSource,
 /* #if IS_WASI */
     args?: string[],
diff --git a/Plugins/PackageToJS/Templates/platforms/node.d.ts b/Plugins/PackageToJS/Templates/platforms/node.d.ts
index 636ad0ee..9d80205f 100644
--- a/Plugins/PackageToJS/Templates/platforms/node.d.ts
+++ b/Plugins/PackageToJS/Templates/platforms/node.d.ts
@@ -1,7 +1,7 @@
 import type { InstantiateOptions } from "../instantiate.js"
 import type { Worker } from "node:worker_threads"
 
-export async function defaultNodeSetup(options: {
+export function defaultNodeSetup(options: {
 /* #if IS_WASI */
     args?: string[],
 /* #endif */
diff --git a/Plugins/PackageToJS/Templates/test.d.ts b/Plugins/PackageToJS/Templates/test.d.ts
index b3bbe54d..2968f6dd 100644
--- a/Plugins/PackageToJS/Templates/test.d.ts
+++ b/Plugins/PackageToJS/Templates/test.d.ts
@@ -1,12 +1,12 @@
 import type { InstantiateOptions, instantiate } from "./instantiate";
 
-export async function testBrowser(
+export function testBrowser(
     options: {
         preludeScript?: string,
         args?: string[],
     }
 ): Promise<number>
 
-export async function testBrowserInPage(
+export function testBrowserInPage(
     options: InstantiateOptions
 ): ReturnType<typeof instantiate>