diff --git a/sample/generateMipmap/main.ts b/sample/generateMipmap/main.ts
index a2c02b3c..c6a84e6f 100644
--- a/sample/generateMipmap/main.ts
+++ b/sample/generateMipmap/main.ts
@@ -18,12 +18,10 @@ const hsl = (h: number, s: number, l: number) =>
 const adapter = await navigator.gpu?.requestAdapter({
   featureLevel: 'compatibility',
 });
-const device = await adapter?.requestDevice({
-  requiredFeatures: [
-    ...(adapter.features.has('core-features-and-limits')
-      ? ['core-features-and-limits' as GPUFeatureName]
-      : []),
-  ],
+const device = await adapter.requestDevice({
+  requiredFeatures: adapter.features.has('core-features-and-limits')
+    ? ['core-features-and-limits']
+    : [],
 });
 quitIfWebGPUNotAvailable(adapter, device);