diff --git a/_scripts/webpack.renderer.config.js b/_scripts/webpack.renderer.config.js
index c0024e0bfae20..357ea20be6f32 100644
--- a/_scripts/webpack.renderer.config.js
+++ b/_scripts/webpack.renderer.config.js
@@ -130,11 +130,6 @@ const config = {
       filename: isDevMode ? '[name].css' : '[name].[contenthash].css',
       chunkFilename: isDevMode ? '[id].css' : '[id].[contenthash].css',
     }),
-    new WatchExternalFilesPlugin({
-      files: [
-        './static/locales/*.yaml',
-      ],
-    }),
   ],
   resolve: {
     alias: {
@@ -152,4 +147,14 @@ const config = {
   target: 'electron-renderer',
 }
 
+if (isDevMode) {
+  config.plugins.push(
+    new WatchExternalFilesPlugin({
+      files: [
+        './static/locales/*.yaml',
+      ],
+    }),
+  )
+}
+
 module.exports = config