diff --git a/playground/ty/src/Playground.tsx b/playground/ty/src/Playground.tsx
index 926861836bfec..442c2801c940d 100644
--- a/playground/ty/src/Playground.tsx
+++ b/playground/ty/src/Playground.tsx
@@ -501,7 +501,7 @@ export interface InitializedPlayground {
 
 // Run once during startup. Initializes monaco, loads the wasm file, and restores the previous editor state.
 async function startPlayground(): Promise<InitializedPlayground> {
-  const ty = await import("../ty_wasm");
+  const ty = await import("ty_wasm");
   await ty.default();
   const version = ty.version();
   const monaco = await loader.init();
diff --git a/playground/ty/vite.config.ts b/playground/ty/vite.config.ts
index 4011bb6f8d63c..b8c69e8c5c341 100644
--- a/playground/ty/vite.config.ts
+++ b/playground/ty/vite.config.ts
@@ -3,6 +3,7 @@ import tailwindcss from "@tailwindcss/vite";
 import react from "@vitejs/plugin-react-swc";
 import { dirname, join } from "path";
 import { fileURLToPath } from "url";
+import { normalizePath } from "vite";
 import { viteStaticCopy } from "vite-plugin-static-copy";
 
 const PYODIDE_EXCLUDE = [
@@ -15,15 +16,17 @@ const PYODIDE_EXCLUDE = [
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [react(), tailwindcss(), viteStaticCopyPyodide()],
-  optimizeDeps: { exclude: ["pyodide"] },
+  optimizeDeps: { exclude: ["pyodide", "ty_wasm"] },
 });
 
 export function viteStaticCopyPyodide() {
-  const pyodideDir = dirname(fileURLToPath(import.meta.resolve("pyodide")));
+  const pyodideDir = normalizePath(
+    join(dirname(fileURLToPath(import.meta.resolve("pyodide"))), "*"),
+  );
   return viteStaticCopy({
     targets: [
       {
-        src: [join(pyodideDir, "*"), ...PYODIDE_EXCLUDE],
+        src: [pyodideDir, ...PYODIDE_EXCLUDE],
         dest: "assets",
       },
     ],