diff --git a/bin/install-kwix.js b/bin/install-kwix.js
index 6f0ae2f..16ea2ce 100644
--- a/bin/install-kwix.js
+++ b/bin/install-kwix.js
@@ -46,22 +46,24 @@ function download(url, dest, redirectsLeft = MAX_REDIRECTS) {
 
 		const req = https.get(url, {agent}, res => {
 			if (res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
-				res.resume(); // discard body
+				res.resume();
 				file.close();
 				if (redirectsLeft <= 0) {
 					reject(new Error(`Too many redirects while downloading ${url}`));
 					return;
 				}
-				// Location can be relative, so resolve it against the current URL.
+
 				const nextUrl = new URL(res.headers.location, url).toString();
 				resolve(download(nextUrl, dest, redirectsLeft - 1));
 				return;
 			}
+
 			if (!res.statusCode || res.statusCode >= 400) {
 				res.resume();
 				cleanupAndReject(new Error(`HTTP ${res.statusCode} - ${res.statusMessage}`));
 				return;
 			}
+
 			res.pipe(file);
 			file.on('finish', () => {
 				file.close(resolve);
@@ -85,12 +87,19 @@ async function flattenExtractedDir(srcDir, destDir) {
 	for (const entry of entries) {
 		const src = path.join(sourceDir, entry.name);
 		const dest = path.join(destDir, entry.name);
-		await fs.promises.rename(src, dest);
+
+		await fs.promises.cp(src, dest, {
+			recursive: true,
+			force: true
+		});
+
+		await fs.promises.rm(src, {recursive: true, force: true});
 	}
 }
 
 async function extractTarGz(archivePath, destDir) {
 	const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'kiwix-extract-'));
+
 	await tar.extract({
 		file: archivePath,
 		cwd: tmpDir
@@ -103,6 +112,7 @@ async function extractTarGz(archivePath, destDir) {
 async function extractZip(archivePath, destDir) {
 	const zip = new AdmZip(archivePath);
 	const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'kiwix-extract-'));
+
 	await new Promise((resolve, reject) => {
 		zip.extractAllToAsync(tmpDir, true, false, err => {
 			if (err) reject(err);
@@ -159,6 +169,7 @@ async function install() {
 		if (entry.startsWith('kiwix-')) {
 			const fullPath = path.join(BIN_DIR, entry);
 			const stat = await fs.promises.stat(fullPath);
+
 			if (stat.isFile()) {
 				await fs.promises.chmod(fullPath, 0o755);
 			}