diff --git a/babel.config.js b/babel.config.js
index 7db9b6f5d4f..0a90a8a1807 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -1,3 +1,4 @@
+// the file is used by jest, shouldn't be removed
 module.exports = {
   presets: ['@babel/preset-env']
 }
diff --git a/postcss.config.js b/postcss.config.js
index 003e460d6cc..0322c52acf1 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -1,3 +1,4 @@
+// this file is used by vite, keep it here
 module.exports = {
   plugins: [
     require('autoprefixer'),