4 files changed, 4 insertions, 1 deletions
diff --git a/dev/bin/build.js b/dev/bin/build.js
index c5814dd3..47c08f3c 100644
--- a/dev/bin/build.js
+++ b/dev/bin/build.js
@@ -254,7 +254,7 @@ export async function main(argv) {
         await build(buildDir, extDir, manifestUtil, variantNames, manifestPath, dryRun, dryRunBuildZip, yomitanVersion);
     } finally {
         // Restore manifest
-        const manifestName = (!args.get('default') && args.get('manifest') !== null) ? args.get('manifest') : null;
+        const manifestName = /** @type {?string} */ ((!args.get('default') && args.get('manifest') !== null) ? args.get('manifest') : null);
         const restoreManifest = manifestUtil.getManifest(manifestName);
         process.stdout.write('Restoring manifest...\n');
         if (!dryRun) {
diff --git a/dev/bin/dictionary-validate.js b/dev/bin/dictionary-validate.js
index 0affb919..dc01815e 100644
--- a/dev/bin/dictionary-validate.js
+++ b/dev/bin/dictionary-validate.js
@@ -18,6 +18,7 @@
 
 import {testDictionaryFiles} from '../dictionary-validate.js';
 
+/** */
 async function main() {
     const dictionaryFileNames = process.argv.slice(2);
     if (dictionaryFileNames.length === 0) {
diff --git a/dev/bin/schema-validate.js b/dev/bin/schema-validate.js
index 319c0d2c..206f26ca 100644
--- a/dev/bin/schema-validate.js
+++ b/dev/bin/schema-validate.js
@@ -20,6 +20,7 @@ import fs from 'fs';
 import {performance} from 'perf_hooks';
 import {createJsonSchema} from '../schema-validate.js';
 
+/** */
 function main() {
     const args = process.argv.slice(2);
     if (args.length < 2) {
diff --git a/dev/build-libs.js b/dev/build-libs.js
index eee007f6..5caabec7 100644
--- a/dev/build-libs.js
+++ b/dev/build-libs.js
@@ -45,6 +45,7 @@ async function buildLib(scriptPath) {
     });
 }
 
+/** */
 export async function buildLibs() {
     const devLibPath = path.join(dirname, 'lib');
     const files = await fs.promises.readdir(devLibPath, {