diff --git a/sample/transparentCanvas/main.ts b/sample/transparentCanvas/main.ts
index f13415a8..56b2d72e 100644
--- a/sample/transparentCanvas/main.ts
+++ b/sample/transparentCanvas/main.ts
@@ -117,7 +117,7 @@ const renderPassDescriptor: GPURenderPassDescriptor = {
     {
       view: undefined, // Assigned later
 
-      clearValue: [0.5, 0.5, 0.5, 0.0], // Clear alpha to 0
+      clearValue: [0, 0, 0, 0], // Clear alpha to 0
       loadOp: 'clear',
       storeOp: 'store',
     },