diff --git a/src/bundle/otto/windows.ts b/src/bundle/otto/windows.ts
index 81ecb18..f4c95ba 100644
--- a/src/bundle/otto/windows.ts
+++ b/src/bundle/otto/windows.ts
@@ -54,13 +54,11 @@ export class BundleOttoWindows extends BundleOtto {
 		const d = new Uint8Array(4);
 		const v = new DataView(d.buffer, d.byteOffset, d.byteLength);
 		const f = await open(projector.path, 'r');
-		let r;
 		try {
-			r = await f.read(d, 0, 4, 60);
+			let r = await f.read(d, 0, 4, 60);
 			if (r.bytesRead < 4) {
 				throw new Error('Unknown format');
 			}
-
 			r = await f.read(d, 0, 2, v.getUint32(0, true) + 4);
 			if (r.bytesRead < 2) {
 				throw new Error('Unknown format');