diff --git a/packages/core/admin/webpack.config.js b/packages/core/admin/webpack.config.js
index 962e6adef8..dbb0707114 100644
--- a/packages/core/admin/webpack.config.js
+++ b/packages/core/admin/webpack.config.js
@@ -52,7 +52,7 @@ module.exports = ({
   return {
     mode: isProduction ? 'production' : 'development',
     bail: isProduction ? true : false,
-    devtool: false,
+    devtool: isProduction ? false : 'eval-source-map',
     experiments: {
       topLevelAwait: true,
     },
diff --git a/packages/core/helper-plugin/webpack.config.js b/packages/core/helper-plugin/webpack.config.js
index 065c2951cf..c46c9c5a1f 100644
--- a/packages/core/helper-plugin/webpack.config.js
+++ b/packages/core/helper-plugin/webpack.config.js
@@ -15,7 +15,7 @@ module.exports = {
   entry: `${__dirname}/lib/src/index.js`,
   externals: nodeModules,
   mode: process.env.NODE_ENV,
-  devtool: process.env.NODE_ENV === 'development' ? 'eval-source-map' : false,
+  devtool: process.env.NODE_ENV === 'production' ? false : 'eval-source-map',
   output: {
     path: `${__dirname}/build`,
     filename: `helper-plugin.${process.env.NODE_ENV}.js`,