diff --git a/config/webpack.dev.js b/config/webpack.dev.js
index 584c41e..e337c22 100644
--- a/config/webpack.dev.js
+++ b/config/webpack.dev.js
@@ -8,6 +8,8 @@ const helpers = require('./helpers');
 module.exports = webpackMerge(commonConfig, {
   devtool: 'cheap-module-eval-source-map',
 
+  mode: 'development',
+
   output: {
     path: helpers.root('dist'),
     publicPath: '/',
diff --git a/config/webpack.prod.js b/config/webpack.prod.js
index c13f28d..b874637 100644
--- a/config/webpack.prod.js
+++ b/config/webpack.prod.js
@@ -10,6 +10,8 @@ const ENV = process.env.NODE_ENV = process.env.ENV = 'production';
 module.exports = webpackMerge(commonConfig, {
   devtool: 'source-map',
 
+  mode: 'production',
+
   output: {
     path: helpers.root('dist'),
     publicPath: '/',