diff --git a/sample/occlusionQuery/main.ts b/sample/occlusionQuery/main.ts
index 8b1d9170..60a425a2 100644
--- a/sample/occlusionQuery/main.ts
+++ b/sample/occlusionQuery/main.ts
@@ -211,7 +211,7 @@ const renderPassDescriptor: GPURenderPassDescriptor = {
   colorAttachments: [
     {
       view: undefined, // Assigned later
-      clearValue: { r: 0.5, g: 0.5, b: 0.5, a: 1.0 },
+      clearValue: [0.5, 0.5, 0.5, 1.0],
       loadOp: 'clear',
       storeOp: 'store',
     },