diff --git a/packages/experimental/webworker-runtime/src/storage/memory.ts b/packages/experimental/webworker-runtime/src/storage/memory.ts
index 0486dc84ab..f7f8fc7a76 100644
--- a/packages/experimental/webworker-runtime/src/storage/memory.ts
+++ b/packages/experimental/webworker-runtime/src/storage/memory.ts
@@ -716,7 +716,7 @@ export class MemoryVfs implements Vfs {
         if (!access.writable) fail('EINVAL', 'ftruncate', target)
         this.truncateFile(node, length)
       },
-      chmod: mode => { this.chmodFile(node, mode) },
+      chmod: (mode) => { this.chmodFile(node, mode) },
       stat: () => this.fileStats(node),
       statBigInt: () => this.fileBigIntStats(node),
     }